Girlfriend Hye-mi and his mom live alone. Jung-woo couple goes on a summer vacation to a country house. Hye-mi's young and sexy mother A-ran, A-ran, who became alone early on, He suffers from loneliness every night and starts to show Jung-woo as a man rather than a daughter's lover. On the other hand, Hye-mi, who says she is going to meet a friend, goes out I had a hot reunion with my young lover, Hoseok. A-ran seduces Jung-woo, who is left alone at home...