A Demon great sword (魔大剣, Madaiken) is one of the various weapon modes a demon weapon may transform into. As the name suggests, these demon weapons can transform into great swords.[1]


Demon great swords generally possess little to no extraordinary abilities. Instead, they're incredibly sharp and capable of penetrating through human flesh with little pressure.[2] They're also capable of cutting through physical manifestations of magical attacks and can generate strong winds with a single swing.[3][4]

However, like ordinary great swords, a demon great sword is difficult to use in tight spaces due to it's weight and length of the blade.[5]


  1. Soul Eater Not! Anime: Episode 3
  2. Soul Eater NOT! Chapter 4 (NOT!)
  3. Soul Eater NOT! Manga: Chapter 41
  4. Soul Eater NOT! Manga: Chapter 42
  5. Soul Eater Manga: Chapter 92
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