Blank Slate(2004)

Akusaga

Zen’s unearthly charm attracts a veritable rogues gallery. A bounty hunter becomes obsessed enough to become his new partner, while the daughter of a general treats him like some sort of guru. But when he meets a mysterious doctor who may know him from the past, Zen learns that the secret of his lost memory is definitely more sinister than saintly.

(Source: VIZ Media)