Saeko, a woman with two faces, an office lady and a pachinko pro, seeks revenge against the pachinko company that speculated on the land in the orphanage where she grew up.

Mari is a gorgeous girl working In Pachinko Centre “SEVEN”. One day, Yamazaki, a food chainstore tycoon proposes to take over the Pachinko Centre to build a food mial. Mari strongly objects to this idea because this Pachinko Centre is the place where she often played with her father in childhood. To reserve her good memory of her father in childhood. To reserve her good memory of her father and a hope to see her father again in this Pachinko Centre, she has to win in the Pachinko Game Competition. White there’s a story behind Yamazaki’s intention to take over this Pachinko Centre…

A request comes to the Fever Girls, a trio who solve pachinko-related problems. An investigation uncovers the existence of a group of cheaters calling themselves the "Kyorokyoro Gang."