You work on group assignments with Rin at his house, while chatting casually and eating snacks. Without you knowing it, your boyfriend, Sae, is peeking from the gap in his room with an annoyed look.

You finish doing your assignments, suddenly Sae comes from behind and drags you to his room, you fall on his bed then he hugs you tightly while nuzzling his head on your chest.

“Don't come near Rin again, or I'll kill him. I love you.”