Himura Kenshin is a vagabond with a dark past and sunny disposition. Not a ronin but a rurouni, he was never a samurai, but an assassin of utmost skill in the Meiji restoration, who in the turning point of the war simply walked away. His travels lead him to Tokyo in the 11th year of the Meiji era, where he befriends a female Kendo master, a former thief, a brawler and a doctor all with their own secrets. Together they fight off the enemies surfacing from the dark past that Kenshin cannot escape. 
(Source: Anime News Network)

[Wiki (jp)](https://ja.wikipedia.org/wiki/坂口芳貞)

One hundred and forty years ago in Kyoto, with the coming of the American "Black Ships," there arose a warrior who, felling men with his bloodstained blade, gained the name Hitokiri, manslayer! His killer blade helped close the turbulent Bakumatsu era and slashed open the progressive age known as Meiji. Then he vanished, and with the flow of years, became legend.
 
(Source: Viz Media)
 
Included one-shots: 
Volume 1: Rurōni -Meiji Kenkaku Romantan- (second one-shot for the series, which Watsuki calls a "side-story") 
Volume 3: Rurōni -Meiji Kenkaku Romantan- (first one-shot for the series, which Watsuki calls the "pilot") 
Volume 6: Sengoku no Mikazuki (Nobuhiro Watsuki's debut one-shot) 
Volume 28: Meteor Strike

Re-adaptation of the main manga series.
 
One hundred and forty years ago in Kyoto, with the coming of the American "Black Ships," there arose a warrior who, felling men with his bloodstained blade, gained the name Hitokiri, manslayer! His killer blade helped close the turbulent Bakumatsu era and slashed open the progressive age known as Meiji. Then he vanished, and with the flow of years, became legend.
 
(Source: Viz Media)

Toshimichi Ookubo