I have re-read the entire manga. This specific Isekai is one of the better ones. I did watch the Anime, it's slightly better than most. The MC is a seasoned veteran Assassin who gave up his life for the company only to die. In this 2nd life, he chooses to live for himself and carrying the honed abilities he build upon. I appreciate how his OP ness is earned reasonably and not just shoven on him out of nowhere. Power Scaling, it is still fair and even better to witness the MC struggling against people/powers not even he is familliar with. The rest of the characters have their own unique personalitiesso there are no bland moments at all?