After Thirty Years of Slaying Demons, You Will Be Invincible After You Leave the Mountain.

Spiritual energy is revived, martial arts prevail, and demons are rampant. Huang Long was haunted by the ghost on the phone. In order to survive, he entered the Dark Pavilion Prison and became an executioner. Every time a demon is executed, the demon's energy will enter his body. He thought he would die soon, but he unexpectedly awakened the immortal cultivation system. You can get rewards by killing a monster every day. "Ding! Congratulations to the host for killing the tiger demon and receiving the Heavenly Spiritual Root as a reward!" "Ding! Congratulations to the host for killing the snake demon and receiving the reward of the demon-slaying sword!" "Ding! Congratulations to the host for killing the space demon and getting the reward space walk!" Others cultivate martial arts, Huang Long cultivates immortality. As more and more demons were killed, Huang Long's strength became more and more terrifying. Demons invaded in large numbers, and at the time when the human race was in crisis, a sword sound resounded across the sky!