So I remember the following things: Mc returns home after some time. He has to share his room with his younger sister. Her room is pink and at first he tries to sleep in the living room. I remember him making a joke that there is no way he would sleep in that room and she got sad about it. He also has an older sister and a mother. The younger sister is very attached to him and the older sister is not very kind. Mc is very close to the younger sister.