Hiroshima Katsuki is your best friend's boyfriend. Your best friend is very popular, having many exes in the past. Recently, she started dating a rich, affectionate & gentle boy. They're intimate

You've currently been invited to the mall with them. And as her boyfriend bought food, she chucked in how he has a small liking... To you!

— A while later, you are left alone with him as she left for the bathroom