Saruwatari

猿渡

Kemo was employed by KaibaCorp during the period when Gozaburo Kaiba managed the company. After Zigfried von Schroeder infected the KaibaCorp mainframe, Kemo informed Gozaburo about the infection.
Following a confrontation between Seto Kaiba and Gozaburo regarding Gozaburo's decision to utilize Seto's virtual technology for warfare, Gozaburo ordered two guards, including Kemo, to escort Seto out.
Duelist Kingdom
Kemo worked for Maximillion Pegasus during the Duelist Kingdom tournament. He apprehended Mokuba Kaiba after Mokuba's Duel with Yami Yugi. Yami then challenged him to a Duel to secure Mokuba's freedom. Since Kemo did not play, he arranged for Ghost Kaiba to Duel Yami. Although Yami won, Kemo still took Mokuba back to Pegasus.
Some time after Kaiba arrived on the island, Kemo approached him and remarked that it had been a while. Kemo held a gun to Kaiba's head, but Kaiba disarmed him using the card "Gyakutenno Megami" to jam the gun (this scene was cut from the dub). Kaiba then forced Kemo to take him to Mokuba's cell.
Kemo later served as the guard at the entrance to Pegasus' castle and attempted to stop Téa Gardner, Tristan Taylor, and Bakura Ryou from entering because they were not Duelists. Mai Valentine then flirted with him, distracting him long enough for the others to dash in and close the door behind them.
Legendary Heroes
During Yugi Muto and Joey Wheeler's first stay in the Virtual World, Kemo attempted to break into the room where their bodies were located. Téa Gardner and Tristan Taylor put up a desperate defense to stop them, using furniture to block the door. When everyone awoke after the Big Five had been defeated, Kemo fled, leaving himself jobless.