Being in a Prison, I Am Invincible

Yang Xiao traveled through time and space to a world where demons were rampant and swordsmen slashed the moon, and his identity in this world was just a little jailer. Not only that, the original owner's body was sucked away by the fox demon. Without his body, he couldn't even keep his job. Fortunately, he awakened the prison suppression system. "Ding, absorb demon energy +100 points, demon clan holy body will increase proficiency by 100 points!" "Ding, absorb evil energy +100 points, and increase the proficiency of the Eight-Armed Demon Skill by 100 points!" "Ding, absorb the fairy energy +100 points, and increase the proficiency of the magic, heaven and earth by a hundred points!"