Heeseung is an ideal student. Heeseung has his reason to be good. No one knows that lovable innocent smile hide the cruel smirk behind it. Everyone knows that he is a transfer student. Heeseung knows too well that here no one will suspect him. No one will recognize the crazy bully from Decelis Academy High School. But the main reason for transfering in the Hybe Academy School is the cute and pretty Japanese boy, who got all his attention, who is Nishimura Riki, also known as Ni-ki.