Things become complicated in a high school when bodies of two students are exchanged. Dae-ho is a trouble maker whose grades are consequently bottoming out. He is a regular in detention and often times a victim of corporal punishment. Eun-bi is a snobby bookworm who has his nose turned up at the world. On one rainy night, the two exchange bodies when they are both hit simultaneously by strange lightning. They are subsequently kicked out of their homes when they try to return as different persons. Their actions begin to alarm their friends and teacher. When Dae-ho passes his midterm exams with flying colors, a suspicious teacher makes him retake the exam. When Eun-bi’s grades begin to fall drastically, his parents disappoint and prepare to move abroad. Dae-ho is proven innocent through a retake of the exams and Eun-bi finds out his parents’ plan for migration. During the annual school festival, it begins to rain and thunder and lightning fills the sky. Once again, as if it had been planned, Dae-ho and Eun-bi are struck again and they are returned to their rightful bodies. —KMDb