Keun Sup, known by his nickname The Blur, is a Korean American Creek Kid formerly of the Other Side who served as the primary representative of the Cherry Blossoms. Keun Sup often acted egotistical, narcissistic, and condescending as the Blur. He was a show-off, constantly displaying his speed and stamina, which caught the attention of Xavier. In "The Quick Name", Keun Sup is shown to have a friendlier side after the King was dethroned in the Capture the Flag war.