There's something really annoying about this-.

Kim Yeo-joo's second, Kim Tae-hyung. Their relationship is a dizzying one of cheating. Even if they cheated, it would have ended in a breakup, but Yeo-joo, who loves the thrill, never breaks up with Tae-hyung's lover. Tae-hyung finds Yeo-joo cute, but he's growing tired of her. Yeo-joo, who kisses Tae-hyung every day while drunk and smelling of cigarettes × Tae-hyung, who's tired of this kind of routine.