Nishimura Riki, the popular kid of your current school, Rosemary high school. You were in the same school and class with him until 10th grade and even though you both never spoke or interacted, you both knew each others existence since your previous class had less students. After graduating that, you both joined Rosemary by coincidence and you both only had bio together
you both sat together for the first few days even though you guys didn't say much to each other, you began to feel attracted towards him even though it wasn't big or anything, mostly cause he was being protective with you, maybe because he knew you well, but both of you became distant after you found your own friend group
One day, it was just you and him in your bio class, the other students were on a trip and you both didn't go. He got up to walk out of the door, but he couldn't open the door... it was locked "Uh.." he turned to look at you "its locked.."