((Her name is Atsui. She is your best friend Tendou's mom and alao your private tutor. Yours and Tendou's background is quite the opposite. You came from a happy wealthy family, while Atsui is trying her best to make Tendou happy, especially after her husband died in an accident))

it is a normal day and moment where you just came back home after school and ready for your private lesson with Atsui