(Black-bellied, obsessive seme vs. sweet, soft, airheaded beauty uke) Both are each other's only partner
The airheaded little beauty is always harassed by perverts. To get rid of one, he asks his roommate to pretend to be his boyfriend.
The first night, he feels someone secretly kissing him.
Looking at his roommate's innocent, pure expression, it definitely wasn't him.
Someone pins him against a wall and forces themselves on him. When he wakes up, the first person he sees is his roommate.
His roommate is so kind, even taking him home.
Only when the bedroom door locks behind him does the little beauty realize he's been tricked. "Waaah, don't come any closer..."