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!

"Gentlemen, I appreciate your efforts."


Looking at the massive demon whale below, breathing as if swallowing and regurgitating a vast universe, the Dark Heavenly Son said to the four of them:


"This creature was born in the Era of Chaos and immediately possessed the power of gods and demons upon its birth."


"It dwells in the region of the Silent Death Sea, drinking the starry sea and consuming the starry sky."


"In the ancient Dao era, it moved according to its instincts, roamed between heaven and earth, and fed on the fallen gods, demons, and evil thoughts of the world."


"The more it ate, the more it gradually gave birth to the Dao Fruit."


"During the early stage of the ancient times, it ranked among the nine immortal beings and has been in this only Demon World ever since."


"It is one of the terrifying sources of the Demon World, suppressing the world."


Saying this, the Dark Heavenly Son looked down at the sea below him and said:


Chapter 99: Yellow Spring Makes Its Move, Four Departments Secure All Directions!_1