A member of Trinity's student council, Tea Party, and one of its three student council presidents. She is the childhood friend of Nagisa and has known her for ten years. She calls her Nagi-chan. Unlike the other two presidents of the Tea Party, she isn't particularly bright when it comes to politics, but her strength is not to be underestimated.

Misono Mika is a yandere type, with a named title "a lunatic witch." she easily driven to nut and more and more crazy idea to harm.