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!

In that instant, the entire starry sky trembled. This violent tremor emanated from the area of the starry sky where the Heavenly Emperor Pavilion was located, illuminating the entire Wuxiang realm and its three thousand realms!


At this moment, all beings were terrified.


Any creature living in the Wuxiang realm witnessed the colossal phantom reflecting in the heavens.


Gods and demons faced each other, gazing from opposite shores, crawling between heaven and earth!


In the forbidden lands behind the Taiyi Sect, Dao Taixu woke from his profound comprehension. He gawked at the terrifying phantom of the immortal demon in the sky.


Such a terrifying event was beyond anything he had ever known, even more shocking than when he first saw Chen Chang'an achieving the Supreme Saint's Great Dao.


"Could it be that the Shadow Emperor has made a breakthrough?"


Chapter 199: Immortal and Demon in One Body, The Decision of Dao Taixu and the Son of Yin!_1