Because of his stepfather's gambling debt, Jung Heejae continues to live as a student in the third year of high school, despite having turned twenty. As the threats from the loan sharks become more severe, Heejae ends up escaping to a secluded island in the South, where his grandmother lives. On this island with no internet, Heejae meets a gangster called Cha Beomjoon, and becomes his personal freeze pop errand boy (?)...