Satone Shichimiya
Yuuta and Rikka's homeroom teacher who manages to be genuinely kind while also having a bit of a sadistic streak—she really enjoys messing with her students, especially Rikka. Both Yuuta and Rikka call her Nana-chan, which says something about how approachable she is despite the teasing.
Content compiled by AnimeList.moe from publicly available sources.
