Michiru

School persona: Always a lone wolf. Speaks little and is a bit cold towards the protagonist.

True self at home: Actually craves company. Wants to watch TV next to the protagonist, and comes to their room when thunder strikes at night.

Reason for living together: The protagonist ended up protecting her due to a complicated family situation and a certain incident.

Charming points: Moments when she quietly says "Welcome home" or "Thank you," things she would never say outside.