Kanteigan Mottomo Koukana Shinikata

He’s in his late twenties with a clean record, but no savings, no girlfriend, and no sense of actually being alive. As a bottom-tier security guard standing before a pool of blood, he wonders: will the habits stained into the souls of the poor attract money, or death?

While rushing to a luxury mansion for work, he stumbles upon "dirty money" and a thief attempting to take it. The protagonist, who absolutely should have apprehended the intruder, dares to let him escape. But when he checks into a hospital as a precaution, the person waiting for him there is none other than the owner of that cash.

(Source: Comic Days, translated)