Kazuo Koike
Not long after the series' debut, creators Kazuo Koike and Goseki Kojima depicted Asaemon's fate in their other series, "Lone Wolf and Cub". Years after the events of "Samurai Executioner", Asaemon is ordered by his superiors to kill Ogami Ittō, but secret interference by Yagyu Retsudo causes his sword to become damaged. During his duel with Ogami, Asaemon's sword breaks, resulting in his death.