Zegen No Yami Tachi Bunko Kakioroshi / Chohen Jidai Shosetsu (Kobunsha Bunko Ko15-23 Ninjo Doshinshin Nari Genzo)

[Machine Translation] The wives and daughters of impoverished samurai families are selling themselves. Ryukichi, a thief, overhears an indecent story at the "Otsutsuya," a fuda mafia, where he sneaks in. The next day, a secret affair unfolded at Hatamoto's mansion. Later, the owner of the big store who joined them was slashed to death. Was this the work of a husband who had noticed his wife's infidelity? Ryukichi's actions and Okacchiki Bunta's search intersect to reveal the truth. Onoe Genzo, a shrewd and experienced assistant, has a flash of intuition, and the mystery is unraveled.

困窮に喘ぐ武家の妻女が身を売っている。忍び込んだ札差『大筒屋』で、盗人の竜吉は淫猥な話を耳にした。翌日、旗本屋敷で秘事が繰り広げられた。後日、そこに加わった大店の主が斬り殺される。妻の不貞に気付いた亭主の所業なのか。竜吉の行動と岡っ引き・文太の探索が交錯し、真相が浮かび上がる。切れ者の同心・尾上源蔵の直感が閃き、謎が解き明かされる。