My grandfather's mother Li Yunlong beat up Langya at the beginning

Traveled through time and space to become Li Yunlong's youngest grandson, Li Fan. Because he was naughty and caused trouble outside, he was thrown into the most difficult field army by Old Li to serve as a soldier. And he was a pig farmer. It happened that the military district's large-scale exercise began. Li Fan's unit was surrounded by the enemy, and only Li Fan and a few others who were responsible for logistics support escaped. With the help of the "Bright Sword System Awakening", Li Fan alone killed through the Wolf Fang Special Forces that were besieging him. He even killed all the way to the enemy's highest command headquarters and captured the enemy's highest commander alive. At this time, he discovered that the enemy's highest commander was actually his grandfather-Li Yunlong! Li Fan: Old Li, come on, call me grandpa...