Koyomi is one of the main characters of SSSS.DYNAZENON. He is a 33-year-old NEET who gets caught in the conflict with Dynazenon and the Kaiju, becoming one of the mecha's four pilots, along with Gauma, Yomogi Asanaka, and Yume Minami.
He is Chise Asukagawa's cousin.
