A Thousand Cranes (2018)

Blurb:
Craig has been thinking a lot about death lately. Working thirteen-hour shifts to pay off his father’s insurmountable debt, taking care of his little brother in between, exasperated and ready to collapse, Craig can’t help but wonder: would it be easier to end it all? It was just an ordinary day like this when Craig stumbled onto the scene of a bloody murder. Now Craig is on the run, pursued by a criminal organization’s most lethal member: Dean. In the hunt, however, the two soon find themselves chasing anything but death.

Source: www.anisearch.com/manga/44697