The Outcast: I Become Old Celestial Master's Disciple, and Everything Goes Off the Rails

After transmigrating into the world of The Outcast, Zhang Lingtian becomes the Old Celestial Master's last disciple on Mount Longhu. He originally planned to cultivate the Golden Light Mantra and become a righteous pillar of society, shining with golden light from head to toe! But just as he drew qi into his body and prepared to establish his foundation... [Ding! The Host has been detected cultivating the Daoist foundational technique, the Golden Light Mantra!] [The Nethergod System has awakened! Upgrading your technique to mythic level...] [Congratulations, Host! The Golden Light Mantra has been successfully upgraded to the Shroud of Netherflame! Additional effects: Absolute Defense, Soul Intimidation, and Yinfire Burn!] Zhang Lingtian was dumbfounded. Wasn't it supposed to shine with golden light? Why had it turned into 108 strips of tattered cloth burning with eerie green hellfire, wrapping him up like a mummy that had just crawled out of a tomb?! The overwhelming yin energy drew the Old Celestial Master and his senior brothers over. “Wicked disciple! What kind of evil art are you practicing?!” [Ding! Hidden quest triggered: Earn the Old Celestial Master's approval! Quest reward: Unlock Mythic Upgrade permissions for new skills!] When his martial uncle attacked with Yang Thunder, Zhang Lingtian was forced to fight back. [Yang Thunder attack ineffective! Absorbing energy... converting...] [Congratulations, Host! You have comprehended the skill Ninefold Netherworld Yin Thunder! Effect: Targets the soul, bypassing the physical body!] When the Quanxing outlaws snuck up the mountain and Zhang Lingtian saw the one controlling the zombies, he could only sigh. [Low-level undead detected. Kingly aura automatically released!] Thud! Every zombie dropped to its knees on the spot! “Mercy, senior!!” [Ding! Successfully intimidated the Quanxing outlaws. Emotion points +10086! Title unlocked: The Old Fiend Even More Sinister Than Quanxing!] Zhang Lingtian: “System, are you trying to make me the CEO of the underworld?!”