I though this was going to be "deep" based on this first comment here. It's very straight forward and simple. I could see this being a series - though it's a balancing act between the extremely light-hearted humour and the fairly dark plot.
I can see the series continuing as he tries to stay one step ahead of his hitman group by faking all his hits, and helping out his "victims" by putting them on the right path. Meanwhile someone in the organisation suspects this and is trying to constantly catch him out...
Sorta like deathnote, but saving lives instead.