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Demons, also known as Devils,[a] are supernatural entities that appear throughout and are a core element of the Megami Tensei franchise. They serve as both malevolent forces as well as potential allies that can befriended through Negotiation. They are often at the heart of major disasters that occur within the franchise's narratives, either being the cause of or otherwise related to them.

Demons in the Megami Tensei franchise do not just refer to conventional evil spirits or monsters, but also extends to numerous other figures and creatures across cultures, including deities, angels, historical and folk figures, urban legends, robots, and so on. In the context of the Megami Tensei franchise, Demon is used to refer to any entity that poses a potential threat to mankind.

Demons are often conversed with and summoned using portable computers or other technological devices, sometimes called a COMP in certain installments. Individuals capable of summoning Demons are referred to in the franchise as Demon Summoners or Devil Summoners.


Digital Devil Story: Megami Tensei series

Shin Megami Tensei series

Last Bible series

In the Last Bible series, Demons are referred to as Beasts[b] (Monsters in the Revelations: The Demon Slayer localization).[c] Beasts co-exist alongside humans in this series.

Majin Tensei series

Devil Summoner series

Persona series

Main article: Persona (Concept)

Devil Children series

Digital Devil Saga series

Devil Survivor series


  • In Japanese, Demons allied with the player are typically called 仲魔 nakama, a pun on 仲間 nakama (companion) and 魔 ma (demon).


Names in Other Languages
Language Name Meaning
English Demon
Japanese 悪魔 Devil


  1. Japanese: 悪魔Devil, Hepburn: Akuma
  2. Japanese: まじゅうMagical beast, Hepburn: Majū. Alternately, spelled as Japanese: 魔獣, Hepburn: Majū in Shinyaku Last Bible.
  3. The back cover of Revelations: The Demon Slayer explicitly refers to them as Demons. The in-game localization, however, calls them Monsters.