Almighty Useless Son-In-Law

Xu Ran accidentally got the inheritance from Emperor Ziji, and was good at medicine, treasure appraisal, alchemy, martial arts... She followed him for three years and suffered injustice, and he vowed to give her the best. Even though Xu Ran, the almighty useless son-in-law, has the power to rule the world, he is willing to be a surrogate son-in-law because he doesn't want to let down her picturesque appearance.