Introduced in "The King of Fighters 2003", Ash leads the New Hero Team of Duo Lon and Shen Woo which participates in a new King of Fighters tournament. After the tournament, he ambushes host Chizuru Kagura and steals her powers, telling Iori Yagami he will be his next opponent. In "The King of Fighters XI", the character teams up with Oswald and Shen Woo. At the game's end Ash leaves his teammates to fight each other, after disclosing that Oswald's price for joining him was finding a drug he can only obtain after defeating their pharmacist's enemy, their own teammate Shen. He later finds a berserker, Iori, defeats him and steals his powers. When Ash's comrade Elisabeth Blanctorche accuses him of abandoning his original mission and becoming obsessed with power, he leaves after saying that Kyo Kusanagi will be his next victim. Ash also appears as an available fighter in the ""'s update "KOF Maximum Impact Regulation A" and "The King of Fighters XII", games without a storyline.