While performing military services in a war-ravaged country, Viper came upon an infant who he believed saved his life by drawing his attention away from an area which was suddenly detonated. In the English dub it simply stated that the rest of the unit he was with was ambushed and captured while he left them. He adopted the child, Pierce, and came to regard him as the "angel" in his otherwise torturous life. Years later, chasing after Duel Monsters cards given to him by Viper as a present that were swept up in the wind, Pierce was run over by an oncoming vehicle (the dubbed version of that scene is cut, here, he died of an illness).