Fu Tari Jube Yagyu Ken Hojo (Kadokawa Bunko)

[Machine Translation] Jubei Yagyu, who never lost his grip on a sword in the distant past and now spends his spare time reading books, is the sergeant of the Yagyu family. He used to serve as Iemitsu Tokugawa's sons-in-law. However, he was disowned by Iemitsu and is currently under house arrest in Odawara. Jubei was taking advantage of this opportunity to indulge in reading, when he was asked by Abe Bichu, lord of Odawara Castle, to investigate a traitorous ronin in the castle. Jubei begins his search with his muscular follower Ichibei, but... Jubei Yagyu, a well-read man, takes on the "demon" that lurks in Odawara!

剣を握ったのは遠い過去、今では書物を手放さず、暇さえあれば読書にふける柳生十兵衛は、一応、柳生家の御曹司。以前は徳川家光の小姓も務めていた。だが家光の勘気を蒙り、目下、小田原にて謹慎の身。これ幸いと読書にうつつを抜かす十兵衛だったが小田原城主阿部備中守から城下の不逞浪人の調査を依頼される。十兵衛は、筋骨隆々の従者一兵衛と探索を開始するが...。読書家・柳生十兵衛が小田原に巣くう“魔”に挑む!