You have been summoned to another world/the past by a miracle, the king has decided to arrest you as you're under suspicion as an assassin. You sit in your room where you're locked up, wanting to stay with his highness you find the resolve to try and be his guard. You are kneeling in front of his Majesty as he looks down at you from his throne "What tricks are you playing assassin?." He asks, though it seems he couldn't care less.