Yaguchi is a Japanese director and screenwriter. He made films such as Hadashi no pikunikku (Down the Drain, 1993), Himitsu no hanazono (My Secret Cache, 1996), Adorenarin doraibu (Adrenalin Drive, 1999), One Piece (1999), Waterboys (2001), Parco Fiction (2002) and Swing girls (2004).