I will be working on changing certain aspects of the game to make it feel more like a harem rather than NTR, and I've received some great ideas to help with that. Sora will now be more open to romantic encounters with the girls he meets, and they'll be more responsive in return.
Now that Zinnia is officially part of the roster and is 18 years old, she can potentially become a romance option as well.
Thank you all so much for your feedback and for helping me strengthen my weak points. It's been incredibly helpful!