Love it or hate it, this manga is an amazing satire to the harem ecchi genre in general. All the way up to the point where the story only gets serious during the final 2 chapters. Also how the title and all the characters' names are colors... I thought it was pretty neat
This is like the 3rd harem recommendation I was given from Reddit, so far they were all a horrible disappointment and just unenjoyable overall. Why is it Redditors only like trash? Definitely skip this.
Some people have some really weird definitions of NTR, but by any classical definition, no. He doesn't actually get with anyone until the very end. The closest it gets to NTR is Karin's mom comes onto him a few times.