soujirou x brother's friend megumi who is sensitive to touch, gets aroused when touched because of soujirou. when soujirou was in elementary sch, he learned about hickey so he made one on megumi. afterwards megumi became sensitive to touch and became cold to soujirou. soujirou then mistakes jealousy for hatred.
seiichirou x best friend kazu. seiichirou is kind so his friend kazu who is indifferent and expressionless came to like him. but seiichirou pushes him away but ends up getting jealous and get him back. seiichirou thought he was the seme but kazu ended up being the seme.
Iyayoiyayo mo kiss no uchi