Sun-hee, a high school girl, starts a small lie to attract attention from her friends. But when the truth gets out, her friends start to leave her out and avoid her. To get back at Jung-mi, who had been her closest friend, Sun-hee sets her up as a ring thief. Suffering greatly from rumors after the incident, Jung-mi ends up committing suicide. Sun-hee flees Seoul from the shock of witnessing Jung-mi’s death to the countryside where no one can find her. There, Sun-hee decides to live a new life in the name of ‘Seul-ki’.