This novel either needed to have its lustfulness cut at least in half, or made directly into an adult novel with full on sex. Either one of this would improve this novel a lot.
The intelligence system could have just been a prophetic ability, all he really does is say go do this, go do that, etc.. More like an afterthought or something and many of the intelligences don't get used?
If you're bored it's readable.
MC is not really naive and annoying like the below says, lack of knowledge is not the same as naivety . Actually I'm quite enjoying this so far 85 chapters in, though I'll likely stop reading by the time Mechas come in as I'm not overly fond of mechas, they ain't this 'Mans Romance'.
So far this is quite good, it doesn't just leech off other sources, like murlocs are quite unique, ratmen seem a bit racist (the black ones are evil, the white and brown ones aren't too bad.) Still so far I'm enjoying it.
The story is actually not bad, the harem isn't annoying the girls personalities are decent.
A bit too much innuendo but its not terrible, a lot of jokes about enemas and chamber pots.
Around chapter 370+ the translation starts to go to shit. Names are messed up even the text is much harder to understand. Not sure whats going on there.