Ogawa Kentarou

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He first appears along with Miki, joining one of the Houses.

It's known that during the events of Sengoku Rance, he was heavily wounded by the acolyte Seiryuu and become a demon when Miki gives him her blood to save him. (Updating in progress)

Toushin Toshi 2
He only appears in the storyline.

Rance 6
(updating in progress)

Kichikuou Rance
He was imprisoned by someone. (updating in progress)

Sengoku Rance
He appears along with Miki.