It's unfortunate that the author gave up on the novel. The concept, which deviates from the average isekai trope, was quite enjoyable.

For me it's a pretty enjoyable novel, but if you can't disregard our real-life moral and cultural implications, then you'll probably hate the story.

This is another dividing story as far as I can see.

The scenery description and the story management are quite good. Unfortunately, the world building could be better. The personality and diversity of the characters aren't bad, but my main problem is that it's hard to really understand what the MC's real personality is, and it isn't helping that he is the type that fools around with his girls, and in many cases he only thinks seriously, but rarely speaks seriously. 

My other big problem is that many event scenes are skipped in the story and, thanks to this, many R18 scenes get skipped as well, but this story should be a "smut" one. 

And because of these skips, there are many interesting parts we don't get to read (know about), like his time in the adventure guild which, story wise, should be more than a year for him. This particular time skip has many interesting encounters that we never really get to know, like his first encounter with slavery, meeting other sentient races etc.wise,

For me, it is still a relatively good read, but these skips and the MC personality should have gotten some plus work.