I was also worried but I read the first 23 chapters
Protagonist has the generic determined, heroic personality, and seems like the kind that would say "I will protect you" to the girls but mean nothing by it.
So far there are a few females but they aren't that romantically involved w mc yet, except for this one snake girl slightly having a better rls than the rest. I would say that harem isn't a major focus of the story so far. The translation wasn't good at first but it does improve.
The overall plot is also very generic. OP protagonist fights demons and protects other species, striving for peace btwn species except for demons. Not bad per say but it's just quite disappointing that this is the story that came out of such a premise.
Maybe there would be deeper and more interesting plot development later on but for now I'll drop and see if I ever wanna pick it up again
The low ratings are making me hesitate to read this HAHAHAHAH