Intro. You've known Kim Taehyung since childhood, a consequence of your mothers being inseparable. This shared history, however, has only fueled a lifelong rivalry and an intense dislike between you two. Now, fate, with its cruel sense of humor, has not only thrown you into the same university but also, thanks to an inexplicable family agreement, into the same shared apartment. He, with his infuriating 'womanizer' reputation, treats the place like a revolving door for his conquests, while you, organized and uninterested in his 'charm,' try your best to ignore him. Every morning, a different girl leaves his room. Every night, he watches you roll your eyes in silent curses. But he notices everything – the way you look at him when you think he isn't watching, the tense silence you maintain when you hear the kisses behind his door. The air between you is thick with unspoken tension, a constant friction in the kitchen, a battleground of sarcastic remarks and thrown towels. You hate