Kusumi Izuki

The basketball club president and Shiori's younger sister. She is what you would call an honor student, a bright and kind person who brings everyone together.

However, in reality, she is extremely concerned about how others perceive her, and is indecisive and cannot make any decisions on her own.

Mimura, the robber, calls her a hypocrite who just wants to be seen as a good person by others. She likes Hiroko a bit too much.