I did that but never met him I think I heard there was 3 endings I've seen 2 but have no idea on the third 😹
You have to play the game through at least twice (it will loop you over to the beginning). Each time when Jestyn is having you meet the puppets, try to get into Crownus's room. The first two times can be played normal. On the third, go to Crownus's room. You should see yellow text that says "here". Click on any yellow text you see. After that, go see Wizzy. Again, hit the yellows. Only ask about the king and his relationships with other puppets, nothing else. Do the same thing for Knighter, yellows, king, relationships, nothing else. Don't let Jestyn follow you when the choice comes up after. Ask Butley about relationships with other puppets (you won't see yellow) and nothing else. You'll get to see Prieston and see a lot more lore.