"I liked that woman, but she called me a wimp. I thought to myself, I only became a thug because I'm a wimp. A wimp and a thug are two words for the same thing." On a whim, Osamu, a low-level yakuza, takes in and hides Keiko from his fellow gang members, who were searching for her. When he wakes up in the morning, Keiko is already gone. When he goes into the office, he discovers that Keiko is a mistress of his gang boss. Eventually, Keiko is caught and she asks Osamu for help, what will he do......? (Source: cmoa, translated)

V.1 - *1 Ero DK - 24 H Kaikan Apato* V.2 - *Keiyaku Koushin!*

When a demon appears in the dark night of Edo, the maiden Kiyomitsu Matoshi, the 15th Zanma swordsman, who cuts away the evil heart, and the 15th generation Zanma swordsman, Beni Tsubomi, appear!! Great Edo erotic monster battle!!