Prehistoric: Return Ten Thousand Times as a Teacher and Never Hide Your Secrets

Zhou Yi traveled to the prehistoric world and became the first ancestor of the human race at the beginning. He was bound to the system of giving disciples and returning ten thousand times. Whatever is given to the apprentice, the system will return it, and it will be returned after increasing it by a certain multiple. "Dip! You give your apprentice a first-grade Xuanyuan Pill, which will return ten thousand times the critical hit, and the Nine-turn Golden Pill!!" "Dip! You have taught your apprentice ten years of cultivation, and you will receive ten thousand times more critical hits, and you will gain ten thousand years of cultivation!" "Dip! You give your apprentice the Golden Core Dao Kung Fu, which will return ten thousand times the critical hit, and you will get the Nine Transformation Mysterious Kung Fu!" ... "My good disciple, today my master will give you a low-grade innate spiritual treasure, the Lingxiao Sword!" "My ancestor, I never hide my secrets when dealing with my disciples!" As Zhou Yi spoke, he took out a handful from the system space that was returned after a 10,000 times critical hit... When the Demon Court wants to refine the witch-slaying sword and massacre the human race. A group of disciples came out of the mountain one after another to kill the big monster like chopping a watermelon. The emperor's eyes are about to burst, why are you, the acquired human race, so powerful? Disciples: Because our master never hides anything! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.