My Family Is The Best In The World

Chen Sha came to a world of immortal martial arts and was ordered to take charge of the world's number one sect when faced with danger.
The previous leader told him before he died:
"If you don't become the best in the world in one day, you will not be allowed to go down the mountain."
So he went into seclusion, crossed the heavenly gate in his body, and faced off against powerful opponents from both ancient and modern times...
...
Many years later, Chen Sha recalled the day he came down the mountain.
He became the best in the world after he came down from the mountain.
In the next dozen epochs, gods and demons will return, immortals and Buddhas will live in the world, and ancient powers and ancient gods will appear one after another.
No matter how the times change, he has always been number one in the world and has never changed.