Tetsu is a simple boy who lives in the big city and supports his mother who is left behind by working two day and night jobs. As a night job, he works in a bar that welcomes girls and has a close relationship with the owner of the bar and his barmaid wife. One day, a rich girl named Chika enters his life uninvited, and his stable life becomes chaotic. Chika, who is beautiful and dynamic and stubborn, Chika with a group of rich friends Chika, who is still accepted as her stepfather's concubine, has started to mess up her life. Although it is from the Roman Porno line, it is a good car with a good story like mainstream cars.