How to get the date the advisor ending? Dude everyone only knows how to join the council lol.
If you decline Pia’s offer to join when she first visits, you don’t go through any of the council of crowns stuff and instead just rule indefinitely. Eventually, though, the royal advisor comes to talk to you about a “personal matter” and asks you out. It takes quite a while though, often only happening in the post 100 days