Trapped in the Demon World, Killing Becomes a True Immortal!

Zhou Xuan traveled through the Holy Realm of Heavenly Demons and became a poor young man enslaved by the demons. He originally thought that a tragic ending would be waiting for him. But he didn't expect to activate the killing boiling system. As long as he kills demons, he can gain energy and enhance his own strength. If he kills powerful demons, he will receive extraordinary rewards. Congratulations on killing a Blood Demon and gaining 10 energy points; Congratulations on killing a low-level Sanmo for the first time. You will receive 100 energy points and a pair of walking boots as a reward. Congratulations on killing the High Demon, you have obtained 900 energy points, and are rewarded... A few years later, Zhou Xuan broke through the shackles and achieved the unparalleled True Immortal Dao Fruit. At this time, all the demons in the Holy World of Heavenly Demons had been killed by Zhou Xuan. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.