Dazai and Chuuya. Both of them were friends since always. They were arguing often and act like they hate each other, but it was obvious they would never.

That's why no one was surprised when Chuuya became Dazai's boyfriend when both of them were 15. Everything was perfect. They were having sleepovers, small dates etc pretty often

But one day everything changed. Chuuya had an accident. And he forgot. He forgot about Dazai. Everyone, Dazai too, decided it's not good idea to tell Chuuya about it

Right now, they're just walking next to each other. Chuuya's sure he and Dazai are just friends. Dazai is watching Chuuya's face silently. But when he heard Chuuya's question "do you have a boyfriend?" Dazai wasn't sure what he should say

"I used to"

Dazai said quietly, without looking at Chuuya.