Sacred Haven of Debauchery

If you don't want to fight and your relationship with them isn't too negative (and they haven't declared war on you), you can try to guarantee their independence. They should open up after some time.

+3 seems to be the relationship increase. And guaranteeing independence requires influence. But I only have +1 influence gain. So, I'll end up at zero. This damned influence is also needed for leaders. At one point, a bunch of my scholars died of old age. One of them didn't even have time to develop to 5 stars, just a little bit, and because of that, I can't conduct one research. And the governor died too early, although it was because he was drinking. And the fleet commander. In short, it's a disaster; I need to do research in the field of genetics in general.