My cow ran away

In the mystical fantasy world, Chen Chang'an was confined to the forbidden library as soon as he arrived,
The sky literally started falling from the very beginning.
Fortunately, at that very moment, his system awakened,
All he needed to do was to read scriptures, and he would keep getting stronger.
Thus, with the library filled with various books, a smile appeared on Chen Chang'an's face.
........
[Ding! You've read Daoist Scriptures and gained a level in 'Heaven Opening Law', currently Level 6.]
[Ding! You've read the Secret Manuscript of Ten Thousand Buddhas, gained a level of Divine Skill 'Six Daos of Reincarnation', currently Level 8.]
[Ding! You've read the Secret Records of Demon Gate, gained a level of Divine Skill 'True Demon That Shakes The World', currently Level 7.]
....
[Ding! Due to the Laws of All Heavens being added to your body, embellished with trembling Literary Qi of the Great Dao, you're rewarded with: Become a Saint on the spot!] 
Years later, as time turned everything old, the world above and the world beneath were already in a desperate turmoil, with immortals descending to the mortal world, and gods and demons performed chaotic dances, making the lives of people unbearable.
Chen Chang'an stepped out of his seclusion one day, looking at the heavenly gods and buddhas scattered across the sky.
“I'm not targeting anyone in particular, but everyone here is garbage!”
That day, he swung his sword and parted the heavens, ever since then, Heaven belongs to Heaven, Earth belongs to Earth!
....!
[PS: Extreme mystical fantasy flow, invincible style! Light readers beware!] 

Become a Saint through Studying! Exposed by my little junior sister!

With this thought, an image unfolded in Chen Chang'an's mind.


Before thousands of formidable beings, he stood, cloaked in black, floating in the air. Waving his arm, a chorus of roars from countless Great Demons followed.


Demon Might overwhelmed the heavens, and the world crumbled...


If this were to happen, it would undoubtedly be a calamity!


So, am I the greatest source of chaos in the world?


"Your Highness, we will take our leave now."


After solving the issue of the Void Demon Whale, the group of four, including Chen Chang'an, bid farewell to the Infernal Sovereign. With their task completed, there was no reason to stay.


"Thank you all for your help," The Infernal Sovereign nodded, said his goodbyes to the four of them, and prepared to leave.


With his hands on the Void Demon Stone, he had achieved his purpose.


After the Infernal Sovereign left, Chen Chang'an and his companions didn't leave.


Chapter 101: The Anecdote of Tianshui, Eventually Becoming the True King Mao Ruxue!_1