I Transformed into a Dragon in My Dream and Was Stupid for Three Years. Why Are You Crying When I Become a Master?

I became a son-in-law and suddenly became stupid on my wedding night. Everyone thought I was a burden, but my newlywed, beautiful wife treated me as before, took care of me and trusted me, so I suffered a lot of looks and grievances. Little did they know that I had been stupid for three years just because my three souls and seven souls were separated and I had to practice the secret skills passed down from my family. After three years of success, Ningjiang transformed into a dragon in a dream. Wife, from today on, I will protect you!