Three girls who work part-time at a convenience store and attend the same university - the quiet Konatsu and headstrong Minami are girls with opposite personalities, while Yuzuru is a kind but indecisive boy. The three are best friends with an exquisite balance. One day, Yuzuru's girlfriend goes back to her parents' house and is away. Konatsu, who secretly likes Yuzuru, is nervous and excited, and Minami, unable to bear it any longer, half-forces the three of them to go to Yuzuru's house after work. "If you like him, then go ahead and do it," she says, as the love and sexual desires of the three girls intertwine...