Dr. Stone treats time like a paused save file rather than a clean time skip, and that distinction matters if you’re trying to pin down character ages, birthdays, and where everyone actually sits on the timeline. Humanity doesn’t just fast-forward 3,700 years and respawn older; their biological clocks are frozen mid-animation, locked in stone until revival. That single mechanic rewires how age works in the Stone World and explains why character profiles feel so unintuitive at first glance.
For gamers, think of petrification as a global hard pause with zero XP gain. No leveling, no stat growth, no passive aging. When Senku wakes up, he’s still a high schooler biologically, even though the world around him has advanced thousands of in-game years without him. Every age listed in Dr. Stone is based on biological time lived, not historical time passed, which is why the series can jump eras without turning its cast into ancient relics.
Chronological Time vs. Biological Age
Chronological time in Dr. Stone is massive, but it’s mostly flavor text for lore purposes. The planet moves on, continents shift slightly, and civilizations rise and fall, but characters don’t accumulate age while petrified. Senku being “3,700 years old” is technically true in calendar years, yet completely irrelevant to his physical or mental stat sheet.
Biological age is the stat that actually affects characters, similar to how a character’s level matters more than total playtime. A 16-year-old pre-petrification is still 16 upon revival, with the same growth potential, stamina limits, and emotional development. This is why height, strength, and maturity differences between characters remain consistent after revival, rather than being homogenized by time.
Why Birthdays Still Matter After Revival
Birthdays don’t trigger during petrification, but they resume once a character is de-petrified, effectively restarting their personal calendar. If Senku was petrified before his birthday, that birthday still hasn’t happened yet from his perspective. This creates clean, trackable age progression once the Stone World arc begins, even though the global date is completely disconnected from modern calendars.
This also explains why some characters age “on-screen” while others feel static for long stretches. Revival order acts like spawn timing in a multiplayer match; whoever enters the game earlier starts accumulating days, experience, and birthdays sooner. Late revivals are essentially late-game characters with fewer lived days, even if they enter a more advanced tech meta.
The Ishigami Village Calendar Problem
Things get trickier with characters born after petrification, especially in Ishigami Village. Their ages are measured normally from birth, but their calendar system is reconstructed, not inherited from modern Japan. Birthdays exist, but they’re often approximations rather than exact Gregorian dates, which is why some profiles list ages confidently but treat birthdays as flexible or symbolic.
This isn’t a lore mistake; it’s intentional worldbuilding. The village tracks time through seasons, harvest cycles, and oral history, not precise astronomical data. From a gameplay mindset, their age is a visible stat, while their birthday is hidden UI data that only matters for lore consistency.
Why Senku Is the Exception
Senku mentally tracks time during petrification, counting seconds to stay conscious, which gives him a unique awareness of the timeline. This doesn’t age him biologically, but it does make him functionally aware of the full 3,700-year gap. It’s the equivalent of a player watching the entire server downtime timer instead of logging out.
That awareness influences how he frames ages, anniversaries, and milestones, even when other characters treat the Stone World as a clean reset. When you see precise age callouts for Senku, they’re backed by math, not vibes, which is why his profile data tends to feel more exact than anyone else’s.
Kingdom of Science Core Members: Ages, Heights, Birthdays, and Scientific Roles
With the timeline rules established, we can now slot the Kingdom of Science’s core roster into clean, readable stats. Think of this like a character select screen: age and height are baseline attributes, birthdays are flavor text tied to lore accuracy, and scientific roles define each character’s loadout within Senku’s ever-evolving tech tree.
Senku Ishigami
Senku is 16 at the start of the Stone World arc, turning 17 during the series. He stands at roughly 171 cm (5’7”) and is canonically born on January 4. His role is pure main DPS and shot-caller, specializing in chemistry, physics, engineering, and long-term planning.
What separates Senku from every other character is his awareness of time. While biologically paused during petrification, he mentally tracks the entire 3,700-year gap, giving him perfect timeline clarity. From a gameplay perspective, he’s the player who never stopped watching the clock.
Taiju Oki
Taiju is also 16 at revival, with a birthday on April 1 and a towering height of about 189 cm (6’2”). He fills the tank role: absurd stamina, high durability, and unmatched manual labor output. His raw strength compensates for his lack of technical knowledge.
In the Kingdom of Science meta, Taiju is early-game essential. He soaks aggro, handles repetitive crafting grinds, and keeps the base running while smarter units push the tech ceiling.
Yuzuriha Ogawa
Yuzuriha is 16 years old, born on June 11, and stands around 166 cm (5’5”). Her specialization is craftsmanship, particularly precision assembly, textiles, and delicate construction that requires near-zero error tolerance.
She’s the support character every optimized squad needs. Without Yuzuriha, advanced tech bottlenecks hard due to human error, making her effectively a passive buff to the entire Kingdom of Science.
Chrome
Chrome is approximately 15 at introduction, with no exact Gregorian birthday confirmed due to Ishigami Village’s reconstructed calendar. He stands around 172 cm (5’8”). His role is experimental science and rapid iteration, driven by curiosity rather than formal education.
Chrome plays like a high-RNG genius build. He stumbles, tests, fails, and occasionally discovers breakthroughs that even Senku didn’t predict, making him invaluable for lateral problem-solving.
Kohaku
Kohaku is around 16 years old, born in Ishigami Village with an approximate height of 170 cm (5’7”). Her birthday isn’t precisely defined, fitting the village’s seasonal timekeeping. She serves as the Kingdom’s frontline fighter and scout.
In combat terms, Kohaku is a high-mobility melee unit with exceptional perception. She handles threat elimination, recon, and protection, allowing science units to operate safely behind the lines.
Gen Asagiri
Gen is 19 years old at revival, making him one of the oldest core members. He stands at about 175 cm (5’9”) and was born on April 1. His scientific role centers on psychology, mentalism, and social engineering.
Gen doesn’t deal physical damage, but his debuffs are devastating. He manipulates morale, spreads misinformation, and controls enemy behavior, turning social dynamics into a battlefield mechanic.
Suika
Suika is initially 9 years old, later aging into her teens as the series progresses. She’s notably short at around 119 cm (3’11”), with no fixed birthday due to village records. Her role blends reconnaissance, stealth, and agricultural assistance.
Despite her age, Suika provides clutch utility. Her small hitbox, disguises, and emotional intelligence make her a stealth support unit who scales surprisingly well into later arcs.
Kaseki
Kaseki is approximately 60 years old, with his exact birthday unknown. He stands around 167 cm (5’6”). His role is master craftsman, specializing in machining, metallurgy, and tool refinement.
Kaseki is the late-game enabler. Once unlocked, he dramatically increases build quality across all tech tiers, effectively raising the Kingdom of Science’s crafting level cap.
Ruri
Ruri is around 18 years old, born in Ishigami Village, and stands about 160 cm (5’3”). Her birthday is symbolic rather than fixed. While not a scientist, her role as priestess and oral historian is critical to lore continuity.
Ruri functions as the Kingdom’s lore database. Without her knowledge, key scientific breadcrumbs like the 100 Tales would be permanently locked content.
Together, these characters form a balanced party with clearly defined stats, roles, and progression paths. Their ages and birthdays aren’t just trivia; they’re part of how Dr. Stone tracks growth, both mechanically and thematically, as civilization rebuilds from zero.
Muscle, Might, and Survival: The Power Fighters of Dr. Stone Explained
With the mental, crafting, and support units established, Dr. Stone’s party comp only works because its frontline fighters hold aggro and control the battlefield. These characters are built around raw physical stats, environmental mastery, and survival instincts rather than science itself. Think of them as high-HP bruisers and DPS tanks that let the Kingdom of Science actually survive long enough to tech up.
Taiju Oki
Taiju is 16 years old at the time of revival, stands roughly 170 cm (5’7”), and was born on April 1. He doesn’t look like a min-maxed fighter, but his endurance stat is off the charts. Taiju is built like a stamina-based tank who never runs out of HP.
In gameplay terms, Taiju’s value is sustain and labor output. He can perform tasks nonstop, soak damage, and keep pressure on objectives without needing recovery time. He’s not landing crits, but he wins through sheer persistence and reliability.
Kohaku
Kohaku is 16 years old, around 161 cm (5’3”), and was born on February 8. As Ishigami Village’s top warrior, she’s the closest thing Dr. Stone has to a balanced melee DPS. Speed, strength, and perception all sit at elite-tier levels.
Kohaku excels at mobility-based combat. Her reaction time and spatial awareness give her natural I-frames in chaotic encounters, letting her scout, disengage, and re-engage faster than almost anyone else. She’s the go-to field unit for high-risk missions.
Tsukasa Shishio
Tsukasa is 18 years old at revival, stands about 195 cm (6’5”), and was born on October 10. He’s the series’ apex physical build, essentially a raid boss turned playable character. Every stat that matters in combat is maxed.
Tsukasa’s damage output is absurd, but his real strength is battlefield control. He deletes threats before they escalate, breaks enemy morale, and dominates encounters without needing weapons. The trade-off is ideological alignment, making him a high-risk, high-reward unit narratively and mechanically.
Hyoga
Hyoga’s exact age is unknown, but he appears to be in his early 20s and stands around 185 cm (6’1”). His birthday is unconfirmed. Where Tsukasa is raw power, Hyoga is precision and technique.
Hyoga plays like a crit-focused spear specialist. His reach manipulation, targeting discipline, and lethal intent make him dangerous in controlled engagements. However, his loyalty stat is unstable, meaning party synergy can collapse if trust mechanics fail.
Kinro
Kinro is 18 years old, about 170 cm (5’7”), with no recorded birthday. As Ishigami Village’s former guard captain, he represents discipline and rule-based combat. His strength isn’t flashy, but it’s consistent.
Kinro functions as a defensive bruiser. He excels at holding choke points, enforcing order, and protecting squishier units. Once his vision issues are resolved, his accuracy and threat management improve dramatically.
Ginro
Ginro is also 18 years old and slightly taller than Kinro at around 172 cm (5’8”), sharing the same unknown birthday range. Stat-wise, he’s weaker and more cowardly, but that’s part of his design.
Ginro survives through luck, positioning, and accidental RNG advantages. He’s not optimal DPS, but he occasionally lands unexpected value plays simply by staying alive when others wouldn’t. In a survival-focused game, that still counts.
Mozu
Mozu’s exact age is unclear, though he appears to be in his early 20s, standing roughly 180 cm (5’11”). His birthday is unknown. Introduced later, Mozu represents elite island combat training.
Mozu is a high-speed assassin archetype. His movement, striking precision, and combat IQ rival Kohaku’s, but with a colder, more lethal edge. He’s a reminder that outside the Kingdom of Science, the meta keeps evolving.
Together, these fighters define Dr. Stone’s survival layer. They don’t just protect the scientists; they shape how and when science can be deployed. Without strong frontline units managing aggro and threat, even the smartest tech tree would collapse under pressure.
Brains Before Brawn: Strategists, Craftsmen, and Specialists Stats Breakdown
If the frontline units manage aggro, these characters decide whether the Kingdom of Science actually wins the encounter. They’re low-HP, high-impact builds that turn raw materials into progress and bad situations into winnable scenarios. Think support mains, crafters, and tacticians whose value skyrockets the longer the match goes.
Senku Ishigami
Senku is canonically 16 at the start of the story, mentally aging into his early 20s by the time of later arcs due to time-skip experience. He stands about 171 cm (5’7”) and was born on January 4. Every stat point went into INT, with almost nothing invested in physical combat.
Senku is a pure strategy carry. He unlocks the tech tree, manipulates RNG through planning, and converts time into power like no other unit in the roster. Left unprotected, he folds instantly, but with even basic frontline coverage, his late-game scaling breaks the meta.
Chrome
Chrome is roughly 16 years old when introduced, around 168 cm (5’6”), with an unconfirmed birthday. Unlike Senku, he’s a self-taught scientist, meaning his growth curve starts lower but ramps hard once mentorship buffs apply.
Chrome plays like a high-ceiling learner class. He makes mistakes early, but his curiosity stat grants bonus XP from failures. By mid-game, he transitions from liability to secondary strategist, capable of running parallel research paths while Senku focuses on win conditions.
Kaseki
Kaseki is 60 years old, about 164 cm (5’4”), with no recorded birthday. Physically unimpressive at rest, his true stats activate once crafting begins.
Kaseki is the Kingdom of Science’s master artisan. Give him blueprints and materials, and he delivers gear with near-perfect execution. His stamina spikes during crafting sequences, making him a rare example of a character whose peak performance triggers outside combat.
Gen Asagiri
Gen is 19 years old, approximately 175 cm (5’9”), born on April 1, which is exactly the kind of flavor text you’d expect. He’s not a scientist, but his mental game is unmatched.
Gen functions as a debuff and control specialist. He manipulates enemy morale, spreads misinformation, and forces opponents into suboptimal plays. In PvP terms, he wins fights before they start by convincing the other side they already lost.
Ukyo Saionji
Ukyo is 20 years old, stands around 180 cm (5’11”), and has a birthday on March 31. Formerly a sonar operator, his hearing stat is borderline broken.
Ukyo is a long-range support unit with unparalleled detection. He prevents ambushes, tracks enemy movement, and provides intel that keeps the party from walking into unwinnable encounters. His pacifist alignment limits kill potential, but his information control is S-tier.
Suika
Suika is 9 years old, very short at around 119 cm (3’11”), with no confirmed birthday. Stat-wise, she looks like a joke unit until you understand her kit.
Suika specializes in stealth, scouting, and emotional support. Her small hitbox grants natural evasion, and her loyalty buffs stabilize team morale during high-stress arcs. She doesn’t deal damage, but she enables plays no one else can.
Nikki Hanada
Nikki is in her early 20s, stands roughly 168 cm (5’6”), with an unknown birthday. While physically capable, her true role sits between muscle and mind.
Nikki operates as a morale tank and crowd-control hybrid. Her presence stabilizes volatile units like Gen and guards against internal party fractures. In long campaigns, that emotional durability is just as critical as any weapon.
These strategists and specialists are why Dr. Stone’s power scaling feels earned. Science doesn’t win through brute force; it wins through preparation, synergy, and exploiting systems better than the enemy ever could.
From Tsukasa Empire to Global Exploration: Antagonists and Allies by the Numbers
Once the Kingdom of Science stabilizes its core roster, Dr. Stone pivots into something closer to a grand strategy campaign. New factions enter the map, aggro shifts constantly, and former bosses get re-specced into allies. Understanding the ages, builds, and timelines of these characters matters, because their philosophies are baked directly into how they play.
Tsukasa Shishio
Tsukasa is 18 years old at revival, towering at roughly 195 cm (6’5”), with a birthday on October 10. He’s physically maxed out from frame one, the kind of unit that ignores early-game balance entirely.
As the former final boss of the Stone Wars arc, Tsukasa is pure melee DPS with absurd strength scaling. His ideology creates friction, but once aligned with Senku, he becomes a frontline carry who deletes high-threat targets. He’s proof that raw power still matters, as long as it’s deployed with restraint.
Hyoga
Hyoga is in his early 20s, stands around 190 cm (6’3”), and has no confirmed birthday. His calm demeanor masks a hyper-lethal kit designed for precision kills.
Hyoga plays like a glass cannon assassin with elite weapon mastery. He exploits reach, spacing, and critical hits, but his loyalty stat is dangerously low. In RPG terms, he’s always one failed persuasion check away from turning into a raid wipe.
Homura Momiji
Homura is 16 years old, approximately 170 cm (5’7”), with an unknown birthday. As Tsukasa’s scout, she’s built for mobility over confrontation.
She functions as a high-evasion recon unit with strong vertical movement. Her acrobatics let her bypass terrain and gather intel, but her low durability makes direct combat a losing trade. She’s a reminder that information wins fights long before damage numbers appear.
Mozu
Mozu is around 20 years old, stands close to 185 cm (6’1”), and has no known birthday. Introduced during the Treasure Island arc, he’s a late-game physical threat disguised as a minor NPC.
Mozu is optimized for one-on-one combat with perfect fundamentals. His reflexes and timing give him near-constant I-frames in melee exchanges, making him a nightmare duel opponent. Against unprepared teams, he hard-checks sloppy positioning and punishes overconfidence.
Kirisame
Kirisame is approximately 20 years old, about 170 cm (5’7”), with an unconfirmed birthday. She’s loyal, disciplined, and devastating at range.
Her Medusa-based toolkit makes her a crowd-control specialist with instant-win potential. In gameplay terms, she’s a zoning character who forces enemies to respect spacing at all times. Once her allegiance shifts, her control abilities flip from oppressive to indispensable.
Ryusui Nanami
Ryusui is 20 years old, stands around 190 cm (6’3”), and was born on June 11. Chronologically, he slots into the story as the key that unlocks global exploration.
Ryusui is a resource-management god-tier unit. He buffs navigation, logistics, and risk-taking, converting ambition directly into progress. If Senku is the tech tree, Ryusui is the currency system that lets players actually afford it.
Stanley Snyder
Stanley is in his late 20s, approximately 190 cm (6’3”), with no confirmed birthday. As a modern soldier revived into the Stone World, he represents an entirely different meta.
Stanley is a hitscan DPS threat with real-world combat instincts. His tactics ignore Stone Age assumptions, forcing Senku’s team to adapt or lose instantly. He’s the embodiment of what happens when late-game enemies drop into an early-game server.
Together, these antagonists and allies redefine Dr. Stone’s scope. The conflict evolves from village survival to global domination, and every new character brings stats that reflect that escalation. Ages ground them in the timeline, heights reinforce their physical presence, and their roles show how science reshapes the rules of engagement without ever removing the human element.
Canon vs. Implied Data: Where Official Stats End and Lore Interpretation Begins
Once the cast expands to global scale, Dr. Stone stops playing by clean RPG rulebooks. Not every character comes with a neat stat card, and that’s where players and lore-heads have to start reading between the hitboxes. Understanding what’s canon versus what’s inferred is critical if you want an accurate mental timeline instead of a headcanon softlock.
What the Manga and Databooks Actually Confirm
Canon data comes from three sources: the manga itself, official character databooks, and direct author notes. Ages, heights, and birthdays listed there are hard-coded values, no RNG involved. Characters like Senku, Taiju, Yuzuriha, Ryusui, and Chrome fall cleanly into this category, making them reliable anchors for the timeline.
When a stat is officially published, it usually reflects pre-petrification data. That matters because physical aging pauses during stone sleep, but narrative experience does not. Chronological age and biological age are two different status effects in Dr. Stone, and the series is very intentional about that distinction.
The Petrification Gap and Timeline Desync
The 3,700-year petrification creates a massive desync between calendar time and character development. Senku is technically over 3,700 years old, but functionally still a teenager when the game starts. This isn’t flavor text; it directly affects how ages are presented and why the series avoids updating them post-revival.
For gamers, think of petrification as a global time freeze with no passive XP gain. Characters don’t level physically, but their mental builds resume instantly upon revival. That’s why most age listings stick to revival-era numbers instead of recalculating after every time skip.
Implied Ages Through Role, Design, and Authority
Some characters never receive official ages, but the narrative gives enough tells to estimate their range. Figures like Gen, Ukyo, Stanley, and many adult antagonists are aged through context: military rank, professional expertise, or social authority. These are soft stats, inferred through gameplay role rather than explicit numbers.
Design language also matters. Height comparisons, facial structure, and how characters are framed in panels function like visual tooltips. When a character consistently towers over others or commands aggro in leadership scenes, the story is signaling maturity even without a number attached.
Why Heights Are More Consistent Than Ages
Heights tend to be more reliable because they’re tied to visual continuity. Once a character’s model is established, drastic changes would break immersion. That’s why even implied height ranges usually stay tight, especially for combat-focused characters where reach and presence affect their threat profile.
Ages, on the other hand, are flexible because they don’t alter panel composition. This gives the author freedom to let characters like Kohaku or Hyoga feel older or younger depending on the arc, without contradicting hard data. It’s adaptive balancing, not inconsistency.
Birthdays as Flavor, Not Mechanics
Birthdays are the rarest stat and the least mechanically important. When included, they’re mostly flavor rewards for fans, adding personality rather than affecting the timeline. Missing birthdays don’t imply mystery; they simply weren’t needed for the character’s role.
In gaming terms, birthdays are cosmetic unlocks. Fun to know, nice for completionists, but they don’t change DPS, survivability, or narrative impact. Dr. Stone prioritizes function over filler, and its stat distribution reflects that philosophy.
How to Read Character Stats Without Overthinking Them
The key is knowing when to stop crunching numbers. If a stat is official, lock it in. If it’s implied, use narrative logic, not speculation spirals. Dr. Stone is a systems-driven story, and every character stat exists to support pacing, escalation, and thematic clarity.
Treat the cast like a well-balanced roster. Some characters come with full patch notes, others rely on player intuition. Both are valid, and understanding the difference is what separates casual viewers from players who truly understand the meta.
Character Growth Over Time: How Ages and Heights Reflect Narrative Progression
Once you stop treating ages and heights as trivia and start reading them like patch notes, Dr. Stone’s progression becomes clearer. Physical stats aren’t just background data; they’re progression markers tied directly to pacing, timeskips, and power scaling. The series uses these numbers the same way games use level caps, silently communicating growth without stopping gameplay.
This is especially important in a story where literal millennia pass, but character bodies don’t age in real time. Dr. Stone has to show growth without traditional aging, and that constraint forces the stats to work smarter, not louder.
Petrification Creates a Hard Level Reset
The global petrification acts like a forced save-state reload. Chronological age keeps ticking, but biological age is frozen, which immediately splits “years lived” from “years played.” That’s why characters like Senku can be over 3,700 years old on paper but still operate with teen-tier stamina and hitboxes.
From a narrative design standpoint, this keeps the early-game roster balanced. No one comes back over-leveled just because they were alive longer pre-petrification. It preserves fairness while letting experience, not age, define skill expression.
Post-Revival Growth Functions Like a Slow Burn EXP Curve
After revival, aging resumes, and this is where subtle height changes start doing real work. Characters like Chrome and Suika gain visible growth over arcs, which reinforces time passing without needing calendar callouts. It’s a long-form EXP grind, and every centimeter gained signals survival, stability, and forward momentum.
These changes matter because Dr. Stone rarely uses traditional training montages. Instead, physical growth becomes environmental storytelling, confirming that the Kingdom of Science isn’t just advancing tech, it’s sustaining life long enough for growth to happen.
Static Heights Signal Completed Builds
Not everyone grows, and that’s intentional. Senku’s height stays effectively locked, reinforcing that his build is already complete at series start. His progression is mental and technological, not physical, so changing his model would add noise without payoff.
Tsukasa works the same way on the opposite end of the spectrum. His towering frame is maxed-out from frame one, instantly establishing him as a raid boss-level threat. No growth needed, because his role is defined by overwhelming physical presence, not development.
Relative Height Framing Replaces Age Callouts
Dr. Stone often communicates maturity through positioning instead of numbers. Kohaku standing shoulder-to-shoulder with fighters or looming protectively over non-combatants tells you more than a stated age ever could. Height becomes a visual shorthand for role, authority, and survivability.
This relative framing is crucial in group scenes. When leaders consistently take the high ground or dominate vertical space, the story is assigning aggro and command priority. It’s the same logic games use when tanks are physically larger to telegraph threat and control.
Why This Matters for Timeline Clarity
For readers tracking the timeline, understanding growth mechanics prevents confusion. If a character looks older or taller, it usually means meaningful time has passed, not a continuity error. Dr. Stone is meticulous with these cues, rewarding attentive players who read the environment, not just the dialogue.
Ages tell you where a character started. Heights tell you how long they’ve survived the game. When read together, they form a clean progression system that keeps the narrative grounded, even as the science escalates into late-game territory.
Quick-Reference Tables: All Main Dr. Stone Characters at a Glance
With growth rules and visual framing established, this is where everything locks into place. Think of the tables below as your character select screen: clean stats, no filler, and just enough context to understand each build’s role in the meta. Ages are listed at initial depetrification unless otherwise noted, since that’s the baseline Dr. Stone uses for progression tracking.
Kingdom of Science Core Party
These characters form Senku’s main squad, covering everything from science DPS to support, crafting, and morale buffs.
| Character | Age | Height | Birthday | Contextual Notes |
|---|---|---|---|---|
| Senku Ishigami | 16 | 171 cm | January 4 | Pure INT build. Physical stats stay static because all progression funnels into tech trees and problem-solving. |
| Taiju Oki | 16 | 170 cm | April 1 | High stamina tank. His age matches Senku’s, but his role is endurance and labor rather than innovation. |
| Yuzuriha Ogawa | 16 | 169 cm | August 23 | Crafting and repair specialist. Her slight build contrasts with her late-game production impact. |
| Chrome | 16 | 171 cm | April 30 | Wildcard genius. Same age tier as Senku, but framed as a late unlock who speedruns the science learning curve. |
| Kohaku | 16 | 170 cm | February 8 | Melee DPS. Her height parity with male fighters reinforces her front-line role without age callouts. |
| Suika | 11 | 119 cm | March 23 | Scout and stealth unit. One of the few characters whose growth visibly tracks long-term time skips. |
Strategists, Specialists, and Power Players
These characters skew older, and the story treats them like advanced classes with pre-loaded skill trees. Their physical stats rarely change because their narrative value is already optimized.
| Character | Age | Height | Birthday | Contextual Notes |
|---|---|---|---|---|
| Gen Asagiri | 19 | 175 cm | April 1 | Mind games support. Slightly older, which justifies his psychological edge and social manipulation perks. |
| Tsukasa Shishio | 18 | 195 cm | October 10 | Maxed STR raid boss. His build is complete from frame one, eliminating the need for growth arcs. |
| Ukyo Saionji | 20 | 174 cm | February 14 | Recon and ranged utility. Older age signals battlefield experience and moral restraint. |
| Ryusui Nanami | 20 | 190 cm | June 11 | Navigator and economy driver. His height and age reinforce command presence and late-game ambition. |
How to Read These Tables Like a Pro
If you’re trying to reconcile timeline jumps, these stats are your calibration tool. Younger characters who grow taller are silently confirming long-term survival, while older characters staying static means the story is shifting focus to systems, not bodies.
Dr. Stone treats age as starting level and height as time survived in-world. When both align, the narrative stays grounded even as rockets, AI, and global logistics enter the endgame.
Final tip before you tab back to your episode or chapter: when something feels off in the timeline, check who’s grown and who hasn’t. The series almost always tells you the answer visually before it ever says it out loud.