One day, Jung Eun-chan receives a confession from Kwon Seo-yeon, a promising taekwondo athlete who has fallen into a slump. Unable to ignore the promising junior athlete because of his outgoing personality, Eun-chan promises to accept Seo-yeon’s confession if he wins a gold medal at the next competition. In what he believes to be a win-win situation, Eun-chan ignores his feelings and begins to take a series of actions that he comes to regret...