Ryotaro (Shinnosuke Mitsushima) is a 29-year-old virgin. To change this, he goes to a brothel for the firs time in his life. At the brothel, he becomes so nervous that he can't do anything and begins to hyperventilate. Kay (Nozomi Sasaki) is a prostitute there and she kindly tends to Ryotaro. Meanwhile, Ryotaro has fallen in love with Kay at first sight. With support from others including Shinsaku (Tori Matsuzaka), who he first met through the internet, Ryotaro carries out an operation to save Kayo from the brothel.
