Miko Dōmoto is a central character in the "Hana no Asuka-gumi!" franchise, featured in the OVAs "New Kabukicho Story Hana no Asuka-gumi!" (1987) and "Hana no Asuka-gumi! 2: Lonely Cats Battle Royale" (1990). She is a core member of the group alongside Asuka Kuraku and Harumi Kōzuki.

In "Lonely Cats Battle Royale," Miko, along with Asuka and Hime, is forced into a violent battle royale tournament organized by an unknown party. The group confronts various delinquent factions while trying to uncover the orchestrator of the competition.

Miko has a half-sister named Kijima Youko. She stands 161 cm tall and is 14 years old during the events of the OVAs.