Risa Kageyama

She's one of Kageyama sisters. She -and her sisters- challenge Yugi in order to obtain "The Violet Hekate " card, which is part of the three hekate cards (Yellow, red and violet). Yugi was sick and about to lose when Kaiba showed up to take his place, and won the match. When Yugi asked him "Why?" he answered: "You are a man who shouldn't lose to these types.".