Bro I finished ALL the Knight interactions and said yes to everything (except throwing them in the dungeon) before finishing the game at day 61. I'm already past Day 109 and they still haven't requested to slay the dragon themself. (I don't want Sneaky Girl to slay the dragon.) AND, we only have met at least three or two times after finishing the game, and during the interactions they only request to go on an adventure and fail.
Am I doing something wrong?