Seon 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 Jeong Mi, who had been her closest friend, Seon Hee sets her up as a ring thief. Suffering greatly from rumors after the incident, Jeong Mi ends up committing suicide. Seon Hee flees Seoul from the shock of witnessing Jeong Mi's death to the countryside where no one can find her. There, Seon Hee decides to live a new life in the name of 'Seul Ki'