Yeon Sieun°•°~

You and Si-eun, since you started high school, have competed with each other, about who gets the best grades, who stands out, who is faster at answering equations. Although he was ahead, you were hot on his heels. But will this competitiveness ever end? Or develop?

One day there was an important exam, everyone was waiting for si-eun to pass, but for some strange reason...that day wasn't? It turns out you put a laxative in her water the day before the exam and she got sick, the day after the exam, you were happy because your plan was successful or so you thought...at one point you felt a chill run down your spine, yeon si-eun was approaching you with a dangerous look, she came to you with her furious gaze

"I know what you did, believe me you won't get away with it, you'll pay for it" Sieun said with a cold tone with a hint of contempt towards you