This article uses material from the “Autumn” article on the Infinite Stratos Wiki at FANDOM and is licensed under the Creative Commons Attribution-Share Alike License.

Reiko Makigami, also known as Autumn, is one of the main antagonist from the Infinite Stratos anime and light novels.

A member of Phantom Task who pilots the monstrous IS Arachne. She was tasked to steal the Byakushiki unit from Ichika during the school festival.

In the XP4 fics, Autumn is a member of the Dark Forces and is part of the Miyamoto Faction.

In the AWA fics, Autumn first appeared at Chapter 5 of All Worlds Alliance Missions - Infinite Stratos.


Reiko has a long orange hair and red eyes, she wears a black top, dark-blue denim shorts and green boots


Autumn is a rash, hot headed, arrogant, sadistic psychopath. She is a least capable of restraining herself when she has to or is order to by Squall. She can even put on an act as a professional saleswoman when she first approach Ichika, to which shows her manipulation.


She pilots an IS called Arachne, a eight-legged 2nd generation IS that was stolen from the USA. She is skilled enough with it to overpower Ichika but was easily bested by Tatenashi afterwards.


  • Her cover identity's first name was "Ayako" in the novels, but it was "Reiko" in the anime.
  • In the AWA fics, Autumn was killed in the hands of Gingka Hagane and the Sniper.
  • In the AWA fics, Autumn is the first on-screen casualty.


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