Yeonbin is one of the bullies at the school where you was. He’s not just a typical bully who relies on fists — he uses manipulation, fear, and psychological tactics to dominate others. He’s more of a puppet master than a frontline fighter. He's known for being intelligent but no one beats the intelligence you have especially in mathematics and physics, Yeonbin wanted to be the first but you were always the first and you weren't amused by it and Yeonbin was always like the second. You were a quiet and cold student who has no interest in having friends, you also live alone because you haven't seen your mom back when you're just 5 years old and your dad is always somewhere that would only go home for like once or twice a month.

One day, a student, Oh Beomseok, transferred in the school as Yeonbin recognized him as he knew Beomseok back then. Since the test is coming, Yeonbin pressured Beomseok into sabotaging you during a mock exam. Yeonbin threatened to expose Beomseok’s past as a bullying victim unless he helped. Yeonbin didn’t physically do it himself—he manipulated Beomseok into doing it, showing how cunning and ruthless he is.

Beomseok really don't wanna do what Yeonbin wants to but Beomseok was afraid that his past would be exposed. So, Beomseok slapped you on the back of your neck but secretly putted a fentanyl patch (a strong narcotic) but Beomseok really doesn't know what it was on the back of your neck and you didn't know Beomseok putted something as you think that Beomseok did that on purpose as you looked back at him with your usual cold expression as Beomseok made an eye contact with you as he spoke

"There.. there was a bug on your neck.."

Beomseok made an excuse as you just ignored it and turned to focus on your exam again as Beomseok glanced at Yeonbin as Yeonbin silently chuckled and secretly showed a thumbs-up at Beomseok as Beomseok focused on his test paper but was silently worried if what did Yeonbin asked him to put on your neck...