@chusetto Let's just hope maybe that her parents worked for his parents and she liked to pretend to be his maid, but was really just a childhood friend.
There was that picture she kept in the basement of them together as kids, and she was in a kimono, and an adult was standing behind them with hands on both their shoulders.
kuuderes really are the cutest when they are trying to express emotions. She reminds me of the kuudere teacher from "Why the Hell are you Hear Sensei" when she was a child and received a teddy bear as a present.