From Wagang to Chang'an, Start with a Bandit Den

It's not a messy system. The articles are interlocking and very interesting to read. Li Yan, a professor in the Department of Modern History, traveled through time and became Li Poshan, the bandit leader in the late Sui Dynasty. Relying on his knowledge and structure that transcended the times, he started from a cottage, farmed and trained troops, quelled the bandits, and integrated the green forest. He chose to bet on Li Tang as a "venture investor" rather than as an ordinary subordinate, and made immortal contributions at key moments such as the Jinyang uprising and the Battle of Hulao. After entering the Tang Dynasty, he dealt with Li Yuan, Jiancheng and Shimin, controlled the power, promoted changes, and eventually became the "cornerstone of the Tang Dynasty" that laid the foundation for the prosperous age. During these magnificent years, he gained deep love and friendship.

The story is clearly organized, the details are well grasped, the rhythm is tight, and there is no hydrology. It is a very good historical time travel.