Urban Cultivation: Invincible Upon Release

Three years ago, Zhang Ruofan's family was framed, and the entire clan was exterminated. He was also on the verge of death. It was Jiang Qiuling who risked her life to save him, and he was imprisoned in the Nether Prison.Three years later, he is the King of the Nether Prison, and even more so, a cultivator!Zhang Ruofan, with his invincible posture, is released from prison, and seeks revenge with joy! He vowed to prove the Dao of the Immortal Emperor and live forever!Those who are kind to me, I will repay tenfold!Those who are my enemies, I will repay a hundredfold!