Senou Souichirou is a ronin with a mysterious past and a terrible secret: he is possessed by a fox demon whose bloodlust awakens during combat. To escape his fate, the man relocates to Edo and replaces his blade for one of non-lethal bamboo. And while the ronin's neighbors are initially suspicious of this odd man who chases butterflies, befriends children, and can find beauty is the most unconventional of places, they eventually accept him into the community. But with assassins and his own inner demons constantly threatening to break the peace, it seems that Souichirou's new life will be far from restful...
Akitsu Masanosuke is a shy, self-conscious and slightly cowardly man with a goal of becoming a great samurai. However, when he is dismissed from his job after two days he must live the life of a ronin until he can return to service. So when a man named Yaichi approaches him offering food and a job as his bodyguard, it all seems too good to be true - that is, until Akitsu learns that this confident stranger is in fact a gangster of the Five Leaves who specializes in kidnapping and lives in the city’s red-light district. While the ronin’s sense of justice makes him think twice about accepting the offer, Akitsu’s grumbling stomach, his growing familiarity with the rest of the Five Leaves, and Yarai’s determination to recruit the budding samurai, may well have other plans...
Two seinen samurai manga that favor slice-of-life over action (but still have some fights). Each has a unique art style (Saraiya Goyou has Ono's characteristic character designs and wispy look, while Takemitsu Zamurai evokes traditional Japanese woodblock printing and sumi-e/ink and wash painting).
Both main characters are ronin who are new to town, and possess odd, gentle natures that belie thier uncanny swordmanship.
Down in the Mississippi delta, RJ has a stable life and loving wife, but what he really wants is to play the blues better than anyone around - a dream he'd be willing to give up just about anything to attain. One night at the juke he hears a rumor that if a man stands at the crossroads at midnight and plays a song, the devil will appear and transform him into an expert bluesman in exchange for his soul. Later, in a drunken stupor, RJ accidentally does just that, dooming his happy life. With nothing to return to, he sets off on the road where he'll face gangsters, a small prohibition town determined to lynch him, and the devil himself.
Takemitsu Zamurai and Me and the Devil Blues are phenomenal seinen manga about two men with literal inner demons.
Both intersperse moments of graphic violence and bone-chilling creepiness with scenes of normal people doing normal things. They're also very well-researched (both are historical), have some of the most finely-crafted plots I've seen in manga, and two of the best art styles as well (though they're at complete opposite sides of the spectrum).
In sum: Go read both of them. Right now.