One hitman is feared above all in Japan: the killing machine known as The Fable. But is he really a tough guy or more of a...weirdo? After a particularly lucrative spree necessitates a break from his life of crime the Fable faces his hardest assignment ever: living as a normal guy with a cover story an apartment and a pet parrot!

It's Way of the Househusband minus the wife and kid plus one adorable friendly bird topped off with a whole lotta blood! 
Inspired the new anime.

Omnibus edition includes Vol. 3-4.

A HITMAN ON HIATUS!

The deadliest man in Japan has a new mission: Take a yearlong break and don't kill anybody. After getting a pet parrot Akira Sato (not his real name) is at a loss. What do normal people do? They get a job right? So the Fable musters his courage writes a resume and promptly discovers that job interviews are much trickier than they seem. Practically by divine luck a neighbor gets him a job at a design company. But how long will the underworld let a legendary assassin slave away at a 9-to-5?