Hello. I need your help guys. I read this sekai fic a while back where Sehun was cute and stuff and basically a "little" sometines. And then he meets Kai because Kai thought he was a e. And Sehun's addicted to heroin (I think). They move in together after Chanyeol basically approves. But Kai is a mafia leader and Sehun doesn't know. 

It's a couple chapters long. Have you guys any idea what it's called?