Shohei Okuda

Samurai Detective Onihei: True Master

Baian the Assassin, M.D.: Part 1

Baian the Assassin, M.D.: Part 2

Kibakichi

Samurai Detective Onihei: Dangerous Mercy

Samurai Detective Onihei: Two Righteous Swords

Samurai Detective Onihei: White plum allure

The Return

Samurai Detective Onihei: One Last Wish