No clue how to beat that Nova boss, the ice one. The rest were ok enough but not that one. Even following the statue's advice, nothing. I build up enough SP to use all 6 spirit skills I have, use the magic to up both defenses... and yet again once it gets past 1/2 HP it won't even let me guard, it instantly casts max heal and that instakill magic getting through my evasion and even being blinded. Guess I'll have to keep leveling till I can hit for over that 50% hp and skip that phase
Besides that it's fine. It'd be best if chests in the "dungeons" reset, otherwise the only point to come back to any that's not the last one is to grind with easier fights, but you normally can oneshot everything with skills that hit all. And I'd prefer actual random dungeons instead of fixed labyrinths of squares but that's the dev taking the easiest design.
About the ntr I've been doing a faithful run first since there seems to be a true ending, and so far the only way to cheat I found was one of the nights, after you've talked to Theo that he wants to do it once every 3 days, you can go out to the garden and masturbate outside, being seen by Dylan (? idk if that was his name).