This is one of the best visual novels I've played to date, and certainly the most captivating hentai VN. The writing throughout the game is fantastic -- the main character is fairly relatable, the banter feels realistic, and I didn't notice any typos in my time with it (an admittedly low bar, but I feel it's worth mentioning given the quality of other h-games out there). The worldbuilding involved is pretty interesting, and I was getting genuinely emotional as I neared the story's end. The pacing is well-done, knowing when things should be silly, serious, or sensual and how to flow between the three. I look forward to whatever comes next from the creator(s), even if it's not necessarily building off of this universe.
Oh, and the actual porn scenes are great too. A good mix of hot and adorable, which is my personal favorite.