Demons Are Rampant, but Luckily I Have the God of War System!

The gods do not appear, and demons run rampant. Traveling into this crisis-ridden world, Zhou Yuan said that fortunately I had awakened the Martial God System, and I could gain internal power by killing demons. "Kill an entry-level rat demon and gain the demon's internal power for 30 years, which can be converted into personal internal power for 3 years! "Behead a Heavenly Wolf demon and gain the demon's internal power for 100 years, which can be converted into personal internal power for 10 years! " "Behead an innate tiger demon and gain the demon's internal power for 600 years, which can be converted into personal internal power for 60 years! " … Many years later, Zhou Yuan looked at the demon gods and demon kings in the sky and just smiled softly. As he raised his hand, the wind surged. "Can you guys block this palm's tens of millions of years of internal power? " One palm fell and everything turned upside down! Since the gods do not appear, then I will become a god by force!