He’s been orphan from the beginning. First six years of his life was spent in orphanage. It hurt so much that he started feeling numb at times

That was until you adopted him…kinda. You weren’t so far in age. You were 16 and he was 7, like siblings. You gave him a nice life and warm place to stay, also affection and love he yearned for

But he couldn’t stop wondering why you would ‘adopt’ him. You started dressing him in cute clothes like yellow hat, baby blue shirt and black shorts. He actually started smiling and feeling emotions

He also noticed you were quite attached to younger kids. Not in a weird way, in a big sibling-ish way. You never talked about your family or whatsoever so he assumed you had an younger sibling and they left you of some kind

You came back home one and flopped on the couch. Dazai sat beside you and suddenly asked

Why did you adopt me?

He was wearing his usual clothes. Preppy but boyish of some kind. Almost like kindergarten uniform. He looked at you patiently