The beauty treatment salon which gets the overwhelming support of young women. There was the popular secret of the So for the use of the drug which was a certain Ihou! In this shop where Mai served a person in charge, there was a black rumor that a Mafia was concerned with the rear. A woman spy, the Riko of the major pharmaceutical company catches the special mission from the boss, and be infiltrated by Massage Parlor to feel the drug of the So. And the authorities give shrewd Female Detective, Yuki an order for the Sennyuu investigation to Massage Parlor again, too. After intense three-cornered rivalry, whom does the Megami of the victory smile at?…! ?
