trigger for queen quest is being able to recruit lyvia...nothing else. that might need to be edited by chyos, I have already brought it up on the discord.
Mirrofuks for getting into the house, it's on the walkthrough and I cannot recommend it more. makes the game really easy. anyways, there's a cave next to the house that you can enter by first talking to the guard and making him face a different direction. this lets you sneak into the cellar of the house and then into the back where the guest room is.
as for nyra...I assume you still can corrupt her with bj's (killing dasan just locks you out of the love route...). keep fucking the people of rumah and she'll eventually agree to blow you...do that 3 times and you should be able to get her cooperation with the water thing.
I've already found the entrance to the baron ... thanks