This is enduringly my favorite H-game. Honestly, the gameplay I could take or leave.... but the art style and the writing are perfection. It may be weird to care so much about the subtle details in the writing, but for me, it makes all the difference in the world the way the monster girls are written; it plays to the 'twisted love' concept I've always adored in porn. Each and every one of them is genuinely convinced that the player character is wasting their potential and that the only way to truly 'save' them is for THEM to be the one that corrupts them, because obviously only SHE is the only with truly noble intentions. (Or in the case of the ram girl, the only one that recognizes what the player character truly craves under the surface.) All the other monster girls? They're just base creatures trying to satisfy their lusts. But each individual monster girl? Well, in her mind, she's saving the player character, even if they're just a little too confused to recognize it right now. Even characters like Voice, who profess to be above it all, ultimately admit in a line or two that they consider the player character their personal property, whatever they might say about personal agency otherwise.
And subtle as that detail might be, it truly elevates the game to a crazy degree in my experience.
