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!

That is equivalent to the existence of a Confucian Saint in the Wuxiang realm, an entity whose utterances can bring down heaven and earth––how dare he offend someone like that!


The crowd was stunned. They originally thought Chen Chang'an would somehow give this Immortal Monarch face. But who could have imagined that, this kid wouldn't move unless he had to, and when he did, he aimed to kill.


He audaciously killed two generals right in front of an Immortal Monarch ––He has no regard for face at all!


It was truly horrifying. At this moment all hearts are chilled, they knew that a great unprecedented battle is about to begin!


The Upper Realm's Immortal Monarch versus Chen Chang'an!


"Ahhhhh! Junior, I must obliterate you today!"


Chapter 216: The Arrival of Ancient Ling Immortal Monarch, a fierce battle with the Immortal Monarch! _1