That sounds really cool!
I really like innovative mechanics in VNs and while this does sounds like a lot, it gives you as a writer a lot of room to tell your own story and us the readers to do a lot of (literally I hope) fucking around!
I do hope that you give us some kind of pointers about who are the main love interests so things won't get too confusing, but I will be looking forwards to what you give us about Flax horny adventures, Zaggy!