Big Ant writes:
"Being a 500 year old immortal demon hunter on a quest for vengeance that for a lack of better words, is a low life means you are bound to amass some free time. So what do you do with all of that free time? Well you kill demons of course while for working for NADA (National Anti Demon Agency), alongside your belittling human companion Arcadia. This pretty much sums up the idea behind Neverdead."