Innocent Thing

Joon-Ki (Jang Hyuk) is a popular physical education teacher at a girls’ high school. He is married to Seo-Yeon (Sun Woo-Sun), who is expecting their first child. During swimming class, a student named Young-Eun (Jo Bo-Ah) climbs to the highest diving platform and jumps into the pool. In a dangerous situation, Joon-Ki jumps into the water and saves her. Days later, Joon-Ki leaves school on a rainy afternoon at the end of the year and accidentally meets Young-Eun, who is soaked. Joon-Ki takes Young-Eun back to school to change clothes. In a dark room with only the two of them, they begin to get close to each other and have some truly passionate moments, while the one who takes the initiative is Young-Eun. Not long after, Joon-Ki also gradually falls in love with his innocent student, Innocent, and Joon-Ki and Seo-Yeon’s marriage is threatened.