Daily, Park Hyung Suk endures violence, name‑calling and humiliation at his high school. Overweight and lacking confidence, he is frequently toyed with and used as a punching bag by bullies, which makes him wish for disappearance. One day, after transferring to another school hoping for a fresh start, he is suddenly transformed into a tall, handsome and oddly athletic figure. Hyung Suk quickly discovers that he now possesses two distinct bodies; when one falls asleep, the other awakens.
Feeling as if life"s jackpot has been hit, he arrives at his new school in this striking, powerful form. Yet popularity soon proves troublesome: girls pursue him solely for his looks and jealous troublemakers spark fights, leaving him trapped in constant conflict. Attempting to juggle these dual existences, Hyung Suk realizes both personas bring relentless obstacles.
