White-Robed Chief - Chapter 60

Ye Xuan was transmigrated to the Qingyun Sect and became the youngest elder. At the same time, he had also received the 10000x Disciple Cashback System.

From a young maid to a previous noble lady and the demonic empress, he accepted all of them as his disciples.

No matter what he gifted and taught his disciples, he would receive the same thing back in 10000 folds.

“Ding! You have given your disciple a low-grade Nirvana Pill. You have been rewarded with the Heaven Path Pill.”

“Ding! You have given your disciple the Sky Blazing Sword. You have been rewarded with the ancient divine sword, God Slayer.”

“Ding! Your disciple’s cultivation has increased by a year. You have been rewarded with 10000 years worth of cultivation.”

Ye Xuan continued to accept more disciples until one day, one of his disciples, the empress, exposed his identity.

It was then that the world learned of a person who was the strongest.

A replica of Marquis Kieran Vale, the son of the Marchioness of Vale, who she deemed a failure. That was all she was. No, she was now referred to as “he.” At least until she met Claude Del Ihar.

A black pearl brought Jiang Feng from a doomsday stage where top masters with one emperor, two emperors, three emperors, four deities, and seven peerless cities show off their glory to parallel time and space, and this time and space-the end of the world has not yet opened! !! Under the sky, the youth look up, if I have strength, can I get through … these two time and space! !!

- Description from 69shu

He is a young man without a spirit root. It is believed that this denies him the chance at cultivation. However, a mysterious lady imparts a Supreme Demon Classic to him and from then on, he starts his path of cultivation.
He undergoes a total transformation to emerge as the most fearsome and powerful fiendish demon in his era, that even immortals and fiends are fearful of him, and saints are at his beck and call.
Mastering the Supreme Demon Classic is the turning point in his life. He is able to unleash his immense and divine power from within, illuminating the entire universe!

- Description from Novelupdates