A detective in Ace Attorney who is Phoenix Wright's friend and assists in solving cases. He has an obvious huge crush on Maggey Byrde but will not admit it. His English surname Gumshoe is a pun on 'gum on the shoe', meaning he is difficult to get rid of.
Japanese name: Itonokogiri Keisuke (糸鋸 圭介 / いとのこぎり けいすけ)