I stumbled upon this by utter chance when looking through F95's list of koikatsu based games. I genuinely just clicked the first one with high ratings that I saw after scrolling to a random point, with my intentions being to be to pretend to play it for a gag.
Little did I know what a monstrosity awaited in this thing. Do you have any particular inspirations for your style of parody and comedy here, because honestly it is uproariously funny. The complete understanding of every issue these games have, combined with extreme ways of mocking those issues, is a powerful combination. I found myself laughing out loud at several points such as the lemonade stand minigame and the parody of date events.
I think the H content in this game is particularly interesting because it is kind of so extreme that it overwhelms everything around it. Like you can't just recommend it to fans of koikatsu games, you have to note that like it's giga-dick MC having giga-sex and spraying the ceiling with cum while triple-impregnating every heroine yada yada. It's very extreme. It blurs the line between like comedic h-scenes, and just the kind of over-the-top H content that perhaps a degenerate would need to experience in order to get off. All other things equal, it actually IS the kind of content most h-gamers want to see: they WANT the girls at 999999/999999 affection, madly in love with them, totally yandere, etc. It's both extreme, but also an extreme depiction of what people want yet rarely actually get so to speak.
Anyway, I feel somewhat overwhelmed and can't really give a critical analysis, but I do want to say you have incredible talent. Although it is often hidden it with the ironic irreverence that suffuses the game, there is a high level of artistry crafting the narrative behind the scenes and the compositions of certain scenes. The obvious is in the early end of the prologue where the original protagonist sees flashes of Sayuri at the exact moment a heart beats: pairing those 2 is not a trivial insight to have, although this is just a basic example. I wish you well in your future endeavors. I am finding Episode 1 extremely funny, but I think most interesting will come the time when things get seriously... naturally, its not like Yuji is going to NTR the protagonist, but I look forward to seeing how things play out with a... different protagonist.