My Disciples Are Too OP!

In the cultivation world, there's an unbreakable rule: Never provoke Lu Xuan. Why? Because his disciples are all too outrageously powerful! His eldest disciple, the Fuyun Empress, establishes the Fuyun Empire and becomes the overlord of the Southern Wastelands. His second disciple, Ye Chen, is a master of both alchemy and martial arts, the Great Emperor of Alchemy and Martial Arts. His third disciple, Chen Changsheng, is incredibly cautious... He could easily obliterate emperors with a flick of his finger, yet he remains hidden from the world. His fourth disciple, the Forbidden Zone Empress, is shrouded in ominous and mysterious energy, and asks her master for help. Lu Xuan: Me? I'm unremarkable, just slightly stronger than my disciples.