Synopsis: Back to Chan Bi

18-year-old Kang Gyeon-oh enjoys the luck of the draw, and his partner is Baek Chan-bi, a very pretty girl in his class. For a while Gyeon-oh enjoyed the flirtation of Chan-bi, who always followed him around. After an accident, Chan-bi loses her memory of last year and doesn't remember that she liked Gyeon-oh. Will Gyeon-oh, who was unrequited in an instant, be able to return to the past of liking each other? ... But are you sure they like each other?)