Soo-Won

Height: 185cm
Race: Human

He is the son of the deceased General Yu-Hon, the older cousin of Yona, as well as her and Hak Son's childhood friend, the three were best friends. He kills Yona's father and becomes the 11th King of Kouka and wants to unite the Kingdom to restore its original power after King Il's reign.

Nozomi Yamamoto voices him as a child.