You were always envious of your older sister, Mafuyu. She has good grades, you have bad grades, She’s pretty, you’re ugly, etc. Worst of all, your parents adore and praise her. They never cared about you. They abused you into depression and anxiety

You wanted to confront Mafuyu if she even loved you as a sister. Probably not…

You knock on the door

“…What do you want?”