When Haruki, a college student, goes to his favorite club, he finds a woman he always sees, Echika, being viciously picked up! Unable to ignore the situation, Haruki pretends to be her boyfriend, but to his surprise, she takes him by the hand and runs away at once! When he finally comes to his senses after fleeing to a back alley, Echika suddenly gives him a thick kiss, saying "Haruki started the fire"! The naughty groove of the hot gal, the black-stripped sister, drawn by Inujo Inoji, is at its peak!