Kitasono Chika

Hobbies: Reading, cooking

The prominent Kitasono family's refined daughter. She is quite serious about her and Wataru's relationship, but has zero experience with both love and sex. At school, she is an excellent student. She appreciates kindness and honesty more than anything.

In order to live up to her family and Wataru's expectations, she keeps up a diary about her and Wataru's love activities. Due to her zero experience, she has only read about all kinds of things from girls' magazines she borrowed from her friends. She often tries mimicking the things she learned from them, and sometimes manages to surprise or catch Wataru off his guard.