While playing I actually have red the game story.
Opening greetling with 18+ question is superb. Best that I've seen, and I've seen many of them as fan of adult games.
Take away Narrator. Not needed. This yellow text feels alien to the game. Think something more organic, like story text in white and characters' phrases colored like their names (each char name has different color). Thoughts can be texted more lightly, like thin text, cursive or transparent letters. The players' general perception of gameplay and novel part will improve.
Personally I like that the main driving motive is attraction, not perversion. Im more fan of erotic approach, not pornographic with gangbangs and other hardcore staff.
Face emotions acting is good.
Choices are nice. Scene variations are easier to render and code, then paths and branches. From simple to more advanced, like points system and other stuff.
The girls talking to the player concept is great. You feel more intimately linked to them.
That sould be all for now. Great game, I enjoyed playing the first version.
P.S. Grammar didnt bother me very much as Im not native Eng speaker, but for some Players from Britain, US, Canada it is important... Imagine an intelligent educated girl (like the heroines) speak weird and ungrammarly phrases