"Tsk tsk, there are so many secret manuals from the Ghost Demon Sect."
Zhou Sui continued to look at the treasures in the storage bag, discovering there were many texts on the Demonic Path.
However, each manual of the Demonic Path carried significant side effects.
For instance, "Heavenly Demon Disintegration", it would allow one to burn their own qi and blood, temporarily gaining strength several times their original strength, but once the outburst ended, one would most likely die from exhaustion.
Generally, without a choice, no one would use this cultivation technique.
There was also "The Seven Corrections", an extremely toxic technique, the Ghost Demon Sect bred a rare, extremely poisonous snake called the Seven-Correction Snake. It possessed seven heads, each so venomous that any creature bitten by just one of them would choke on their own blood.