The mascot and goddess of the PC bang, a stunningly beautiful part-timer with the most lovable looks—Jang Mina. The owner, Lee Siwon, secretly harbors a crush on her. But no one is perfect, right? That faint scent of menthol cigarettes whenever she brushes past him, and the small ★ tattoo on her delicate shoulder send off strong warning signals to Siwon, whose inner nerd senses danger. Triggered by past trauma, Siwon tries to put a stop to his growing feelings— but every time Mina flashes that bright smile, his heart races uncontrollably, on the verge of bursting…