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To get a Domain Expansion in Kaizen, raise the mastery of the cursed technique you own to its required level, then speak to Hakaze and exchange 10 Domain Shards. Requirements vary by technique: the documented examples range from Mastery 125 to Mastery 250 to unlock the exchange. For Disaster Tides, Mastery 300 is also reported as necessary to use the Domain in combat.
Check the requirement for your technique
There is no single mastery threshold established for every Domain. These technique-specific routes are reported in current third-party guides; they are examples, not a complete list of every Kaizen technique.
| Technique and Domain | Mastery to unlock exchange | Mastery to use in combat | Documented shard source |
|---|---|---|---|
| The Strongest of Today / Unlimited Void | 125, plus 10 Domain Shards | Not stated in the AllThingsHow guide | Shinjuku Raid; the guide reports a 1% drop rate on Normal difficulty |
| Disaster Tides | 250, plus 10 Domain Shards | 300 | Not stated in the AllThingsHow guide |
| Disaster Flames / Coffin of the Iron Mountain | 125, plus 10 Domain Shards | Not stated in the AllThingsHow guide | Not stated in the AllThingsHow guide |
Sources: AllThingsHow’s The Strongest of Today guide, updated May 31, 2026; AllThingsHow’s Disaster Tides guide, updated August 14, 2026; and AllThingsHow’s Disaster Flames guide, updated May 4, 2026.
Exchange Domain Shards with Hakaze
- Raise your technique’s mastery to the threshold listed for its Domain.
- Collect 10 Domain Shards.
- Go to Hakaze at Jujutsu Tech or in the safe zone, depending on the route described for your technique.
- Talk to Hakaze and complete the Domain Shard exchange. Check the NPC prompt for the current requirement and confirm the Domain is unlocked.
For Disaster Tides, the guide distinguishes unlocking the exchange at Mastery 250 from casting the Domain in combat, which it says requires Mastery 300.
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How to get Domain Shards
The Strongest of Today guide says Domain Shards drop from the Shinjuku Raid and reports a 1% drop rate in Normal difficulty. That figure is specifically attributed to AllThingsHow’s guide, updated May 31, 2026; it is not an official published drop table and should not be assumed to apply to other raids or techniques. The Disaster Tides and Disaster Flames guides confirm the 10-shard cost but do not establish a universal shard source or drop rate.
Confirm the live requirement in-game
Use the mastery and cost in your technique’s Hakaze prompt as the final check. The official KAIZEN Roblox experience page, published by Lajebo Games x Kaizen, describes the game but does not list Domain-specific mastery thresholds, shard costs, or drop rates. Third-party guide figures may change with updates, so a different live-game prompt takes precedence.
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