Kinji is Kinichi's sibling who he loves very much. He cares for him even though he left Kinji with a lot of trouble after his sudden leave of absence from his life. To Kinji, Kinichi was like a god who he could always trust and was his only family that raised him after his mother and father passed away before Kinzou and Kaname were known to exist. However, after the events of volume 4, they have been on bad terms. Even so after all that has happened and even having to fight sometimes they still love each other as siblings and will try to help Kinji (Even if he can only do it indirectly). Also its been said many times to Kinji's disbelief that Kinji has a power that one day will surpass Kinichi's own.