Imaizumin-kun lives alone after his parents go abroad, but his quiet life changes when his apartment becomes the hangout spot for three lively and attractive gyaru girls from his school: Hayasaki, Ruri, and Reina. These gals, each with their unique personalities, bring energy and provocative adventures to Imaizumin-kun's life, sparking a series of sexual escapades. What starts as casual visits quickly turns into a wild harem experience centered around their irresistible attraction to him.