He was a participant in the Duelist Kingdom tournament. However on the first day of the tournament, his Star Chips were stolen by Mokuba Kaiba. Kemo grabbed the boy and tried to forcefully bring to the boat transporting eliminated players from the island.
Yugi and his friends tried to bargain with Kemo and ask that he give them time to retrieve the boy's Star Chips. Although Yugi was successful in getting the Star Chips in the given time limit, Kemo didn't keep true to his word and had already sent the boy away on the boat.