Yukinaga Chicchi

Akamori Rikuo wants to be an ordinary salaryman, but… A genius fighter born into a family that's been practicing the ancient killing arts for centuries, Akamori faces obstacles like the Yakuza, other gangsters, and fighters on the path to what he wants.Cancellation: After the death of author Yukinaga Titti, the series was ended in March 2024.

As far as the public is concerned, Rocopon—earth’s only alien—hasn’t done much but loaf around in the 8 years since he crash-landed in Tokyo with no memory of his past. Granted, that is what he likes to do, and he does spend a lot of time playing video games. But as an alien to whom earth laws technically do not apply, he’s been hard at work in a top-secret capacity: government-sanctioned extrajudicial assassin, cleaning up the worst of society that the law is either too slow or too powerless to confront. After years of dispatching hapless crime lords and their goons, things have gotten comfortable. But Rocopon is about to meet his match in more ways than one—fed up with his sloppy ways, headquarters has assigned him a straight-laced partner, and the criminal underground has enlisted the help of those who are a little more than human… (Kodansha USA)