Isachi

The son of Taima no Kehaya. After his father lost a duel against Nomi no Sukune, his family was forced to flee their home in the village of Toma. Because of this, he sees Sukune as a traitor to the Izumo clan and believes him to be a coward who defeated his father through deceit. Determined to avenge his father, he swears to make Sukune pay. (mangapedia.com)