In one work, a former executioner works this profession with his son Daigorō, and in another the son of the owner of the No. 1 headband becomes a member of this profession; those manga are (*) Lone Wolf and Cub, and a manga about an "Afro"-wearing member of this profession.
The success of a manga about this profession made Kazuo Koike and Goseki Kojima known as the "Golden Duo." In one work, a former executioner works this profession with his son Daigorō, and in another the son of the owner of the No. 1 headband becomes a member of this profession; those manga are (*) Lone Wolf and Cub, and a manga about an "Afro"-wearing member of this profession. Despite the planet having been taken over by aliens, Gintoki Sakata retains this profession in Gintama, and Himura Kenshin gives up being an assassin to become one of these people in Rurouni Kenshin. For 10 points, give this profession, members of which are known when lordless as "ronin" and who follow the way of bushido.
The success of a manga about this profession made Kazuo Koike and Goseki Kojima known as the "Golden Duo."
samurai (prompt on swordsman and synonyms; accept specific titles like ronin; Ed’s note: -100 for ‘ninja,’ especially if it seems like they were just guessing)