Yoo Youngjae is a new student at TS High, together with his two close friends, Moon Jongup and Choi Junhong, also known as Zelo. They 3 stayed around the same neighbourhood, just a few houses apart. Every day, they go to school together, without fail. While walking to school, Zelo clumsily bumped into Bang Yongguk, the school's most known student for all the wrong things. It has been rumoured he was biual in school, but no one knows if it was right. Yongguk, together with Kim Himchan and Jung Daehyun tried to familiarize the 3 of them, but failed to. They 6 have been in the same school for the past few years, but hasn't bothered to find out who they all are. The school bell rung, and without wasting any time, Youngjae dashed past Daehyun but he grabbed Youngjae's wrist and held it tightly. Youngjae turned to look at him, and regretted doing so. Daehyun was staring into Youngjae's soul, making his eyes widen. At the same time, making Daehyun smirk. 

"You don't know who we are, we don't know who you all are. Since you're not familiar faces, we'll let you off. But if we see you again.." Daehyun glided his index finger from Youngjae's forehead, down to his nose then to his lips, making Youngjae flinch and back away slightly. Daehyun laughed at his reaction.

"That will happen. Understand?" Youngjae, Zelo and Jongup, without answering the 3 of them, immediately ran off to their classes.