優一郎と共に吸血鬼と戦う、「月鬼ノ組」の隊員。吸血鬼に姉を殺されており、復讐のために部隊に入った。心優しい性格だが、有事の際は困難に立ち向かう、強き意志を持つ。
Yoichi is a member of the "The Moon Demon Company” fighting vampires with Yuichiro. His sister has been killed by a vampire, and joined the troop for revenge. Although he is kind-hearted, he has a strong will and stand up against difficulty at times of emergency.
