I fear for the game which has to rely on the writing and plot to keep the player interested, it could use some more care and attention to both.
On technical level, the game mixes up present and past tenses, especially at the start. On story level... MC meets a guy who used to visit her mother, but the mother made sure he and MC didn't actually interact. The guy takes her to a brothel, then escorts her back home. Then on the next day shows up and declares "I love you!" and the MC can then to declare right then and there that she loves him and wants to be with him too, even though she spent no more than half an hour with him her entire life and doesn't know first thing about him.
On one hand i get that it's a porn game, but on the other hand this sort of pacing is emotional equivalent of "a guy comes to check house plumbing and three minutes later we are in a middle of a fuck". Given MC is supposed to be a completely pure virgin, it's... slightly off, to put it mildly.