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The Isshiki (一色) Family is one of the 18 Assistant Houses, bearing the number One (一) ​in their name.


They are part of 18 Assistant Houses and are from the First Institute, where the research focus was "Magic that Directly Interferes with Living Organisms". [1]

Like the Ichihana Family, the Isshiki also have magic that can directly interfere with the human body through the brain and nervous system. [2]

Airi's signature magic, Lightning; in order for it to be used the user must perceive information through magic that is recognized by the spirit without the intervention of the brain and nervous system, which consists of two parts - magic that directly orders the body's movement and spirit. [3]


  • Isshiki Airi's Mother


  1. Volume 13, Magician Research and Development Institutes
  2. Volume 19, Ichijou Masaki School Change Diary
  3. Spin-off Manga Mahouka Koukou no Yuutosei, Chapter 35
  4. Volume 21, Chapter 3