As you can read in the summary the story is kinda interesting. An exterminator (pest controller/killer) gets a new life after death but doesn't get any super powers so what can he do?
The MC is strong and mature and doesn't want to stand out. He accidentally got a big power up but still keeps doing only those quests that he likes doing instead the ones that would get him fame or fortune. I must say I like it! So far the manga has also stayed true to its name and the MC hasn't started learning magic or fighting skills.
Of all the isekais out there this
is one of the better imo.