I Have An Impersonal System

Upon transmigrating, Su Yinjian found himself in a cultivation world, inhabiting the body of a grandmaster of a sect, an immensely powerful figure with thousands under his command.
However, he hadn't inherited any memories of this new body. He was clueless about cultivation, martial arts, and even how to wield his strength. 
Three days of intensive reading in the library yielded no results.
On the brink of despair, a voice echoed in his mind.
"Ding! The System of the Unorthodox Sect Master!"
Finally, the opportunity had arrived. Now, he knew what he had to do to recover his memories and learn to wield his powers.
As the sect master, he had to plunge his sect into chaos and bring about its downfall. 
It wouldn't be an easy task dealing with a sect with thousands of years of history and hundreds of powerful elders.