Nezumi Ko Machi No Koi (Shodensha Bunko Ko17-62 Kaze Retsu Mawari Yoriki Aoyagi Ken Ichi Ro 54)

[Machine Translation] Kenichiro Aoyagi, a Yorozei, is assigned to search for a case that has gone cold. A man and a woman were murdered in Imado ten years ago. The dead woman's former fiancee has disappeared, and the only suspect has disappeared from Edo, only to be murdered. With no promising leads, the case is at a standstill when a new murder is discovered. As the investigation proceeds, an unexpected male-female entanglement becomes the key to unraveling the case - what was it that the murderer wanted to protect at all costs?

風烈廻り与力の青柳剣一郎は、迷宮入りした事件の探索を任される。十年前に今戸で起きた男女の殺しだ。死んだ女の元許婚は消え、唯一の容疑者は江戸から姿を晦ましたあと殺されてしまう。有力な手がかりもなく行き詰まるなか、新たな殺しが。調べを進めると、意外な男女のもつれが事件を紐解く鍵に―犯人が命をかけてまで守りたかったものとは?