The Most Powerful Upgrade System

After the end of the world, Li Siji traveled through time to a prince who was assassinated as a concubine with the help of Pangu space. With the help of the strongest system in Pangu space, Li Siji practiced his bloodline, strengthened his skills, killed monks, and made great progress all the way. In his eyes, there are only two kinds of people, one is those who surrender to him, and the other is the dead!