A man is reborn as Li Shimin's illegitimate son, unaware of his true identity. He lives a simple life with his wife, farming and inventing, gradually developing a dilapidated village. He enjoys this peaceful existence, wishing for it to last forever. However, as time passes, he grows and transforms from a nobody into a prominent figure. This is a story of a small person's journey to greatness, filled with ambition, foolishness, wealth, and romance.