Guam Koa

Guam Koa is one of the main characters in the series Yu-Gi-Oh! Dupower. He is a strong duelist, and a friend to Venabu and Mecedu Zooka. He is known to become mean when he gets angry or upset.

Appearance
Guam is a tall light-skinned teenager who wears a long red coat and blue sweatpants. He has short blonde hair.

Venabu and Mecedu Zooka
Guam is close friends with Venabu and Mecedu, but he can be mean to them when he doesn't get his way. Both Venabu and Mecedu support Guam.