Have a System and Slowly Cultivate Immortality

Song Chen in the earth world was struck by lightning! (I actually traveled through time, and it turned out to be true (｀Δ´)!) From now on, the system will be awakened, the bloodline of Emperor Yan? The ancient artifact Xuanyuan Sword? God's pet? Beauty? It turns out that this world is really big, the world of gods? Fairyland? What? And the billions of galaxies in the universe!