Len wasn't the brightest in school. He'd fail almost every class, wasn't really like by a lot of students, his only friend being his sister, but even then, she'd hangout with her friends, leaving him behind. He wasn't depressed or anything, but did have a thing of emptiness. Soon a new kid comes into play, wich grabs Len's attention. Everyone thought the kid was completely weird, so always left him alone, to his pleasure. Len quickly jumps in and talks to him. He gets to know the kid, but he ends up falling for him instead.
Fukase was moving in and getting used to people but felt lonely. He'd do his best to smile but he needed someone to understand him. He tried making friends but his face made it hard. He cover his bad side of his face with his hair but it didn't change the fact that he felt like a monster. One day he notices someone is moving in next door. He thinks its a boy but later on finds out its a girl. They both are emotionally unstable at times but soon find they can work things out together. Fukase learns he needs v4.