Kankitsu Akitsuki

is Remon Yoimura's distant relative and fiancé.

Background
When they were little, Kankitsu and Remon grew up together. Sometime later, when Kankitsu reached the age of twenty, a curse mark appeared on his right palm. In order to subdue the curse for another hundred years, Kankitsu was ultimately betrothed to Remon. Following these events, Kankitsu began growing cold toward Remon.