Violence, name-calling, and humiliation constitute a daily reality for high school student Park Hyung Suk. Chubby and insecure, he is frequently treated as a plaything and punching bag by bullies, leading him to wish he could simply disappear. Unexpectedly, upon transferring schools in hopes of a fresh start, a miraculous opportunity arises: he awakens in a tall, handsome, and strangely athletic body. Hyung Suk quickly realizes he now owns two disparate bodies; when one falls asleep, he wakes up in the other. Feeling as though he has won life's lottery, Hyung Suk enters his new school as this attractive and strong young man. However, it soon becomes evident that being a popular student is not without its difficulties. From girls interested in him solely for his looks to delinquents picking fights out of jealousy, he seems unable to escape trouble. In attempting to balance his two different lives, Hyung Suk may find both to be sources of ceaseless challenges.