The Force Nobles of the Wasteland

The time travel to become the son-in-law of a down-and-out noble was given by his biological father. The key is that his memory and everything else were destroyed by his biological father, and he was completely used as a marriage tool. After getting married, I discovered that my wife was pretty good. The key was that I seemed to have incredible power, and it was because of this that I was assigned to her by my father. What's more important is that this world seems to be a wasteland, and the creatures that keep peeking at the down-and-out nobles outside the safety net make my wife tremble with fear. Wife, I'll catch them and make soup later. Then I found that my wife's shivering was not because she was scared, but because she was excited when she saw the food. Did I do something wrong?