My Father-In-Law Is Li Shimin

When you travel back to the Tang Dynasty, what would you most like to do? Be a prince-in-law? I won't do it! Wouldn't it be nice to eat and drink every day, open a gourmet restaurant, farm, and play mahjong? What's more, I brought a warehouse across time. If we don't make good use of such a good resource, wouldn't it be a waste? But the emperor wants me to be his consort, what can I do? After Qin Shan traveled back to the Tang Dynasty and became Qin Qiong's son Qin Huaiyu, facing the doting of Li Shimin and Queen Changsun, he made full use of his warehouse and did many major things that benefited the country and the people.