"There's nothing as beautiful and harmful as you." Eugene, who has no time to do assignments because he's always chasing after Huan, who attracts weirdos with his promiscuous nightlife. Huan's smile, as he casually overlaps with Eugene even though they aren’t in a relationship, has become unbearably irritating. Eugene's goal, now intolerable, is to wipe that trashy smile off that face...?!