During the Taisho period, the geisha Hanakiyo (played by Junko Miyashita) was bent on giving birth to a child for her benefactor, and then married as a wife. However, the heavens did not fulfill people's wishes, and after three years of getting along, Hua Qing never gave birth to a son and a half daughter. In contrast, another favored geisha Somehachi (played by Rinko Inazawa) gave birth to a baby boy and turned into a graceful lady. The jealous Hua Qing took the opportunity to snatch the baby under the pretext of visiting.　　In the blink of an eye, it was the Showa period. Hanakiyo runs a brothel alone in Omori, with two young and beautiful geisha Kofuku (played by Serry Mingxiang) and Koyae (played by Yoshino Yu). The baby boy has also become a teenager, and this boy named Shotaro (played by Hiroshi Nakazawa) has been exposed to it since he was a child and is familiar with various things in Fireworks Alley. Hanakiyo was worried that he would go astray, so he sent him to study at a movie theater run by Enkejima Village (played by Akira Hanagami), but he never thought that this would just open the door to Shotaro's sexual enlightenment......