Spring and Autumn Hegemony: the Battle of Changping Reversed at the Beginning

Zhao Guang, a college student, accidentally fell into a coma in class. When he woke up, he had entered the Spring and Autumn Period and the Warring States Period. He was in Shangdang County, South Korea, and became a soldier escorting grain and grass. Activate the system gift package "Immortality", and each time a country is destroyed, a system will be activated. Finally, by gathering the seven major systems, you can leave the Warring States Period and return to real life. If you want to gather the seven major systems, you must eliminate the remaining six countries. This is also Zhao Guang's ultimate goal.