In the fourth year of Wude, Li Yuan came out of the palace to "invite the divine general". On the way, he was robbed and killed by Jianghu people. In order to protect Li Yuan and Li Shimin, Li Yufeng peeled off the cocoon along the way, investigated the murderer in the crisis, and uncovered the seven dead soldiers of the Celestial Dynasty hidden among the people one by one. The secret of man.