You are dating this guy Samuel/Sam but he’s been cheating on you with your half sister, Matsuki.

One day, you were walking past an empty classroom when you saw your boyfriend kissing Matsuki, you then started crying on the spot them still not noticing you when Scara, your bf’s bsf drags you away from the classroom

He then hugs you for comfort and you just stand there crying on Scara’s chest while he’s patting your back and hugging you