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The Demi-fiend has no personal name in the game’s official character presentation. In ATLUS’s official HD Remaster profiles, he is listed as the protagonist and identified by the label “Demi-fiend.” Names such as Naoki Kashima and Shin Magami appear in related adaptations, but the official game material does not establish either one as his canon personal name.
What the official game profiles say
ATLUS’s official character profile for Shin Megami Tensei III: Nocturne HD Remaster is the most authoritative place to check. Both the English and Japanese versions present the character without a personal name.
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English profile
The English profile files him under the heading “Protagonist” and describes his transformation in these words: “Before he fused with a Magatama and became the Demi-fiend, he was no different than your average Tokyo high schooler.” The page does not name an individual writer, so treat it as ATLUS’s official description rather than a quotation from a named person.
Japanese profile
The Japanese profile uses the label 主人公 (protagonist). Its description reads: “東京都内の高校に通う普通の少年。『マガタマ』を授かったことで、『人修羅（ひとしゅら）』と呼ばれる悪魔となる。” In editorial translation: “An ordinary boy attending high school in Tokyo. After receiving a Magatama, he becomes a demon called Hitoshura.”
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The two profiles agree on the substance. The protagonist is an ordinary Tokyo high school student who becomes a demon after receiving a Magatama. The English profile uses “Demi-fiend” as the working label, while the Japanese profile uses 人修羅 (Hitoshura) for the transformed form. Neither profile gives him a given name or surname.
Why “canon name” has no single answer here
The phrase “canon name” can mean two different things, and the sources answer them differently:
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- Japanese text
- The official in-game label. This is “Protagonist” in the English profile and 主人公 in the Japanese one. The English-language label for the transformed form is “Demi-fiend.”
- A personal name used in an adaptation. Adaptations can assign names that do not appear in the game’s own official profile.
Answers to the question become contradictory when these two meanings are mixed. The official profiles establish the first meaning. They do not establish a personal name for the second.
Names attached to adaptations
Game8 reports two adaptation names. The first is Naoki Kashima, which Game8 attributes to a 2003 Japanese drama CD. The second is Shin Magami, which Game8 attributes to a novel adaptation. These are reported adaptation names, not ATLUS declarations.
| Name | Where it appears | Source for the claim | Status as a canon personal name |
|---|---|---|---|
| Protagonist / Demi-fiend | ATLUS official HD Remaster profile (English) | ATLUS official English profile | Official character label; no personal name given |
| 主人公 / 人修羅 (Hitoshura) | ATLUS official HD Remaster profile (Japanese) | ATLUS official Japanese profile | Official label and term for the transformed form; no personal name given |
| Naoki Kashima | 2003 Japanese drama CD | Game8 report; primary audio or text not verified | Adaptation name; not established as the game’s canon personal name |
| Shin Magami | Novel adaptation | Game8 report; primary text not verified | Adaptation name; not established as the game’s canon personal name |
Because the drama CD and novel names come from a secondary report, cite them with attribution. Do not present them as a publisher-wide ruling on the character’s name.
How to refer to him accurately
- In general writing: use “the Demi-fiend” or “the protagonist.” Both match the official English profile.
- When discussing the Japanese presentation: use 人修羅 (Hitoshura) for the transformed form and 主人公 for the protagonist label.
- When citing a drama CD or novel: name the adaptation and the source reporting the name, for example “Game8 reports that the 2003 drama CD uses Naoki Kashima.”
- When asserting a canon name: do not, unless ATLUS itself states one in a game or official publication you can cite.
Limits of this answer
The official profiles show how ATLUS presents the character in the HD Remaster. They do not prove that no personal name appears in any licensed or ancillary work. A name missing from the profiles is therefore not proof that the name does not exist anywhere in the franchise. The answer above applies to the HD Remaster profiles as cited here. It does not settle what the original release presents in every detail.
Shin Megami Tensei III: Nocturne HD Remaster is listed by ATLUS for Nintendo Switch, PlayStation 4, and Steam. Playing the game is the most direct way to see the protagonist’s presentation in context, but the game itself does not supply a personal name.
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