This one isn't that bad, I thought it was going to be some outright gooner power fantasy based on the first few chapters but it does attempt to flesh out the characters as well as have a plot beyond 'zombies n hot gurl'.
Also that NTR commenter needs to give his hand a rest
We'll hunt him, because he can take it. Because he's not our hero. He's a silent guardian. A watchful protector. He's The Strongest Sage with 0 Magic Power
Manga so far is good. Hopefully it's not a straight match to the web novel: I felt the web novel kind of jumped the shark a bit too much for my taste after it had managed to float above the standard slop-sekai