Goemon Ishikawa XIII (Japanese: 十三代目 石川 五ェ門, Hepburn: Jūsan-daime Ishikawa Goemon) is a fictional character created by Monkey Punch for his manga series Lupin III, which debuted in Weekly Manga Action on August 10, 1967. Goemon is a thirteenth generation descendant of the renegade samurai Ishikawa Goemon. He is famous for a reticent personality coupled by apparent unlimited skill in martial arts and swordsmanship with his sword Ryusei (流星, Ryūsei), known in the anime as Zantetsuken (斬鉄剣).