1st- step bro x bro, height diff, feminine uke
2nd- uke is only rude to seme, masochistic/sadistic and teasing seme
3rd- uke hates seme (due to a misunderstanding), age gap
4th- past student x teacher, are neighbors, meet up again after teacher left no contact detail for student.
5th- childhood friends reencounter after having ignored each other for 4 years due to a misunderstanding
6th-a teacher becomes friendly with a delinquent student which leads them to living together and having sex, suddenly the seme starts being cold towards.
Momoiro Shoukougun