Masato is an aspiring novelist and college student who moves to a seaside town to be close to the beach the sexy bikini clad women. Masato, along with his friend Oka, start working at a restaurant on the beach, while looking for potential candidates for a summertime fling. While Oka gets lucky quickly, and finds his romantic partner working at the same restaurant, Masato it not quite so lucky, and only has his daydreams to keep him company....

Takayasu Higashino is private detective with plenty of expert skills above and beyond mundane investigations. His knowledge of guns is second to none, his martial arts skills are world-class, and his special interrogation techniques are guaranteed to elicit a confession from any female suspect. When Takayasu rescues the beautiful Ayane from a rape, he is drawn into a dangerous game of intrigue and seduction. He goes under cover and under the covers to sneak into Ayane's mansion, where she has been imprisoned by her family's sex-crazed bodyguards. Before reaching her, however, Takayasu must not only out-smart Ayane's devilish uncle and his gang of servants, but also her seductive aunt, Kiyoe. This 'house-mistress' definitely has her own plans to distract the heroic detective, and it will take all of his special skills to turn the tables on her.