Kyousei Harem Keiyaku was a huge disappointment.

The premise and the first few chapters were interesting and had me thinking that this was about to get good. But then all of a sudden it seemed like the chapters started to lose all coherence and it became pretty confusing. The story didn't flow well at all, some of the scenes felt forced, and the ending was unsatisfying. The characters had a lot of potential to become memorable, but I feel that their stories weren't expanded upon enough and because of that they seem quite dull. Maybe this would be different if there were more chapters.

I guess it has some entertainment value, but I wouldn't recommend this aside from a way to waste some time.