Oni Ken Yamma Bunko Kakioroshi / Chohen Jidai Shosetsu (Kobunsha Bunko to 21-6 Kakure Metsuke Edo Nikki 4)

[Machine Translation] Unno Yonosuke, a hidden assistant of the Ezaki clan in Suruga Province, enjoys fishing in Edo Bay. On his way back to the fishing lodge, two samurai were cut down. Both were Ezaki domain samurai, and from the wounds, the underlings were believed to be wielders of the mighty sword. Yonosuke, the Hidden Attendant, is ordered to find out who the underlings are and take care of them, but will he be able to kill them? Yonosuke's sharp sword cuts off the plot that is stirring in the upper echelons of the clan! This is the fourth installment of the highly popular series.

江戸湾で釣りを楽しむ駿河国江崎藩の隠目付・海野洋之介。釣宿への帰路、ふたりの武士が斬られていた。ふたりとも江崎藩藩士で、傷口から下手人は剛剣の遣い手だとみられた。隠目付の洋之介に下手人たちを探り出し始末するよう命が下るが、果たして相手を討つことができるのか。洋之介の鋭い剣が、藩の上層部で蠢く謀略を断つ!大好評シリーズ第四弾。