Kitano Ukyo is a professor at the Heartland Academy that Yuma Tsukumo attends, and was one of the characters possessed by one of the "Number" cards; "Number 34: Terror-Byte".
While under the "Number" influence, he launched a Crashbug Virus throughout Heartland City, causing all electronics system to go haywire and caused mayhem. After Yuma defeated him in a Duel, Kitano revealed that he was planning a special spectacle where he used the city's matrix code of that image to materialized an image of "Crashbug" in the sky.
