The Gardener in a Hunter World - Vol. 1 Ch. 25

[MangaDex]

 

[JustAFish]

Why is it that villains always do this "let's just wait a little longer" thing. Waiting to be defeated ain't they?

 

[TheAmberFang]

It's basically fusing the Solo Leveling "dungeon outbreak" genre with the fantasy isekai genre, except that the MC is playing everything as a management sim.