Koh

Koh (コウ) is a rising Tamer in the Light Fang organization, and is Sayo's main rival. His design is the male version of the protagonist from Dawn. He is partnered with, , , and his NaviDigimon , although he also acts as a stand-in Tamer for , , and Hououmon while heading "Team Sunburst". Koh's name is likely derived from "kou" (光).

Digimon World Dusk
Koh first faces Sayo during the Normal Tamer Tournament. However, he is the only Light Fang Tamer to not fall under the ChronoCore's control, although he is confused when his possessed teammates attack Sayo during the "Light Fang Assault" quest, and initially challenges her to battle to punish her for "hurting his friends". Afterward, he escapes Sunshine CITY and allies with Night Claw to save his team, even battling Kowloon Co. with them. They use his Digivice to create an access portal to Sunshine CITY, and he even lends Sayo his Digivice to help her pass through. He eventually attains the rank of Platinum Tamer, and faces off against Sayo in the Legendary Tamer Tournament.

Digimon Story: Super Xros Wars Red and Blue
Koh is fought in the Silver Tamer Match and leads Team Sunburst (サンバースト).