Shortened version of the novel summary: Joo Yoon is tired of his classmate, Hyun Jaekyung, who often picks fights and bothers him for no apparent reason. Joo Yoon isn't the type who deliberately says mean things to others, a lot of resentment was built up in a short period of time. In a way, Hyun Jaekyung made him like this. But... was Joo Yoon being too harsh? When Joo Yoon visited to check up on him after the other had left in a hurry, he found Hyun Jaekyung with a puffy and flushed face as if he'd just been crying. Maybe it was just a hangover. Come to think of it, that kid always skips school the day after fighting with him. Hyun Jaekyung is an annoying brat who gets angry over every little thing, but strangely enough, it worries Joo Yoon when he's not around and it drives Joo Yoon crazy... Meanwhile, Jaekyung's looks alone are enough to drive him crazy. It's clear that nobody except Joo Yoon would ever seriously consider being with him for life. 'I disliked him so much, but somehow, I'm now stuck with him. And when I thought we were finally getting closer, he distances himself from me. What am I supposed to do with this bastard?'