Li Feng, the king of modern soldiers, traveled through time and became a border soldier who was falsely accused of collaborating with the enemy and was on the verge of death during the Zhenguan period. With his iron will and talent for war, he rose up from the desperate situation, killed his enemies with his own hands, and stirred up the situation in Chang'an. From forming the invincible Mo Dao Guard to sweeping across Mobei and sealing Lang Juxu, he became a military legend. However, when his achievements shocked his master, he chose to retreat bravely and build his own utopia on the edge of the empire.