Hello. Regarding the harem question, I'm a bit confused about the question. Do you mean, will the game have scenes involving multiple girls at the same time? Because if so, then there will be such content.
Regarding the endings, the game only has a beginning. There is no global plot yet. Maybe with future updates I will do something like that.
Regarding the imposed content, the game is still quite vanilla in my opinion. There is, of course, content with femboys, but it can be avoided. By selecting the appropriate function, the gender of the characters will be changed to female, and in some places the character will be replaced with another.
Regarding the animation, I haven't delved too deeply into this topic yet. I've seen how AI animation is made for similar games, but I haven't personally tried to do anything like that. Maybe I will try.