MONSTERS: Ippaku Sanjou Hiryuu Jigoku

MONSTERS: 103 Mercies Dragon Damnation by Eiichiro Oda tells the tale of Ryuuma, the legendary swordsman that hails from the Land of Wano in One Piece.
A samurai's path leads him to a young waitress whose hometown was destroyed by a dragon. He doesn't want any trouble - but it finds them anyway.
(Source: Netflix Anime, edited)