Great Qin: I Married a Princess in a Vegetative State, and Now I'm Over the Moon

My name is Liu Bai. I transmigrated to the Great Qin and somehow became the son-in-law chosen to bring good fortune to Princess Ying Yinman. And... I was also slated to be buried alive with her?! Everyone feels sorry for me, but I'm over the moon! That's because I've bound myself to the strongest Son-in-Law System. As long as I help the Great Qin flourish, I'll keep earning rewards! 【Ding! Congratulations, Host, on inventing the three-piece horse tack set. The fortune of the realm rewards you with papermaking!】 【Ding! Congratulations, Host, on killing Zhao Gao, the traitor who brought down the dynasty. The fortune of the realm rewards you with potato seeds!】 【Ding! Congratulations, Host, on throwing Xu Fu into the furnace to refine him. The fortune of the realm rewards you with the Everlasting Spring Cultivation Art!】 My name is Ying Yinman. I fell into a coma after my eighteenth younger brother, Hu Hai, tried to murder me, leaving me in a vegetative state. I had planned to end my life, but somehow I wound up with a husband. He spoils me rotten. When Zhao Gao stepped into my presence with his right foot first, offending me, my husband killed him on the spot. He keeps presenting treasures to Father for my sake, giving me the courage to keep living. The only embarrassing thing is... he is always trying to cuddle up to me. Fine, I admit it. I like it! Husband, cuddle me!