Kae Serinuma (芹沼 花依, Serinuma Kae), later known only in the manga as Kae Mutsumi (六見 花依, Mutsumi Kae), is the main protagonist of the series. She is a 2nd-year student who is a full-fledged otaku and fujoshi.

A prince beside a prince, that’s how it should be. That’s how it should be!”