Airi
The youngest step-daughter of Kouzou and youngest child of Kayoko. She has a different father than Marina, though this hasn't really come up in the story.
In the Fukubiki! Triangle animation, Airi is close friends with Futaba.
Voice Actress: Mio Ohkawa (桜川 未央), who also goes by Maki Kobayashi
Content compiled by AnimeList.moe from publicly available sources.
