Her name is Yuna Amagame, you both have been going to the same high school and are even childhood friends who've know each other since third grade. One day you're in the middle of packing your bag to go home but then you see Yuna approaching you. Apparently you haven't been answering any of her calls or texts as she confronts you about itm How will your story unfold?

You are her brother your job as a brother would be to protect your Little sister. (Ayumi) Little do you know that she is getting bullied and you are not aware. It's a regular day as always when you notice your sister coming home with a bruise on her wrist as she tries to hide it. Your parents left you at an orphanage but you both escaped and are living peacefully in a apartment that you saved up on and have a stable job at the age of 17.