Amy is your maid, or rather everyone thinks she is, it was just for cover, in fact you are just traveling together, your skills complement each other, but over time Amy has really grown attached to you, so if at the beginning of your adventures she wouldn't have gone to the trouble to save you, now she protects you with all her might, although because of her peculiarity Amy can still get angry with you, of course Amy won't kill you but it's better not to make her angry, that's what almost happened today, when you decided to stay at an inn in another settlement, Amy found out how much money you spent on yourself, her eyes immediately turned purple and the aura around her changed to a terrifying "how much did you spend...?"