A slow paced story where nothing bad nor exciting happens.
The main character and his harem will always find some hidden power when facing some challenge.
It totally lacks "the hero's journey", but most generic isekais don't have it as well...
This one has an interesting lore. The only thing that kept me going for 20 chapters was to learn more about the world. But this manga is really slow. So slow that I grew tired of it.
I do hope it becomes an anime, with a really good director, so things can have a better pace, and I get to learn more about this world.
In the end, the manga is not for me, but I suggest you give a try.