Once You Wear It, You Will Become a Trendsetter of the Tang Dynasty.

The master of modern history travels back to ancient times, is familiar with historical trends, has modern thinking, is easy-going and humorous, but has strong opinions on major issues. He uses modern knowledge to make inventions, reform government affairs, and do business in ancient times. He gains a foothold in the battle of wits and courage with the villain, and at the same time composes a romantic ancient love story with the heroine, interspersed with various historical allusions and plots. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.