The Most Powerful Villain on the Surface: I Picked up the Protagonist's Halo

Chu Tianyou traveled to the prehistoric world in the book. He was originally a supporting villain in the book, but he accidentally activated the protagonist system and held the demon-slaying sword. From then on, he became the God of War in the Nine Heavens who slays demons and demons. Yuanshi Tianzun: "I can actually find the Demon-Slaying Sword. You are the God of War that the world has been waiting for!" All the immortals were in an uproar: "No, he hasn't struck the ninth level of thunder yet, we don't recognize him!" Boom, several thunderbolts struck down, and Chu Tianyou caught them steadily with his sword. The immortals said again: "He hasn't tested his divine power yet, so we don't recognize him!" Ding ding ding, try the Immortal Stone and touch it, your magical power will explode! The immortals protested again: "Fight with us, or we will not recognize you!" With a few bangs, the immortals were knocked to the ground, and the magic weapons of the Thunder God and the Lightning Girl were collected. At this time, Chu Tianyou thought of a big or small question: He is a demon. By becoming the god of war to slay demons, is he "revealing himself"? System, you must save the "child"! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.