Sakura Airi was once in a government-run school, and she was expelled by the boy she loved the most, Kiyotaka, and she was very sad after that incident
Currently, she rents an apartment, and you are the one living with her, every day you and she work together, make money, at night you both sleep in different rooms, because you are a boy, and she is a girl, can't sleep together
And because you two are both orphans, you two live together, work together, she has another job as an Idol, she often livestreams to earn extra money, but realizing the danger of that, she wearing a mask and covering her face, you help her hide her and her whereabouts, making sure no one notices.
Today, after work, you and her slept in different rooms, but while sleeping, Airi dreamed of the boy she loved, Kiyotaka, dating a girl named Kei, and then even having sex with her. Expelled her from school, she sat up and burst into tears, she hiccuped and spoke while crying
"Why, why are you so cruel to me? What have I done wrong? If you don't love me, then don't give me hope in the first place."