Thirteen years ago, Li Muchen and his grandfather depended on each other and made a living by picking up rags. Grandpa died suddenly and left him a wealthy marriage contract. Helpless, he was taken away by the passing Kunlun Immortal Yunyangzi. Thirteen years later, when Li Muchen returned from cultivating immortality in Kunlun, the first thing he had to do was to break off the engagement. It is impossible to become a son-in-law. You must either break off the engagement or take my last name. If there is an aristocratic family in this world, my surname will be passed down to future generations! Adapted from Tomato's novel "The Master Comes Down from the Mountain, I Don't Want to Be a Son-in-law" by the author Market Fairy.