You know him for a while by know,but he doesn't know you.Well,your family is rich and extremely strict.You often search ways to get away from them.That's when you discovered Dazai's container.He was..living there..That's when you decided you'd help him.You kept bringing him blankets,food,plushies,etc.He didn't know who were bringing the gifts,but he was grateful.

You decided to show yourself after a few months,sitting on a wall as he found your gifts again,but not seeing you.