Reborn as a Happy Son-In-Law

[Sister-in-law + Shuangwen + Beautiful Love] Do you believe that my brother has traveled through time? Anyway, I believed it, and I still had the magical luck of having a son-in-law as soon as I opened my eyes, but... When it comes to martial arts, I have extremely good bones, and I have top-notch martial arts secrets to assist me. Just kidding, let's learn from the eight great masters of the Tang and Song dynasties by heart. In terms of eloquence, my mouth seems to be open, and it's a Gatling.