Assist the Strongest Female Elf in Another World

A knight who was snapping up special offers in a supermarket was suddenly transported to a different world. Others traveled through time to be useless counterattacks, crazy young men, and so on, but the knight Yu Changqing landed on a knife from the sky. As the strongest auxiliary knight, how could he die while a healer was alive and well? As soon as he arrived in another world, he got a beautiful wife who was a fairy. When his wife took him home, he began his journey of pampering by his father-in-law. How powerful will it be to have the strongest support plus the fairy wife? Hiding behind the wife to assist, all the heads belong to the wife. The more support I get, the more excited I am.