He is Yuzuki's ancestor, having lived over 600 years prior to the beginning of the story. Due to Seri's ability to see him all the time, Haruhisa acts as a mediator between Seri and Yuzuki, and the other ancestors of the Furumidou family.

No voice actors have been added to this character. Help improve our database by searching for a voice actor, and adding this character to their roles here.