A main character from the anime Yu-Gi-Oh! GX. He has black hair and black eyes. Initially wears the Obelisk Blue uniform, but later switches to a custom black uniform for the rest of the series.
His main catchphrase is "One! Ten! Hundred! Thousand! Manjoume Thunder!" (一！十！百！先！万丈目サンダー！); part of the wordplay is that his surname uses the character for ten thousand (man, 万). He gets annoyed when someone (usually Juudai) fails to address him with the proper honorific.
