Li Baijin

There was a Senior Brother and a Junior Sister. One of them was transmigrated to this world and had cheats while the other was the reincarnation of a Great Emperor.
The Senior Brother wished to stay away from trouble so that he could live forever, but he was ruthless and crafty.
On the other hand, the Junior Sister wanted to go against convention and conquer the Nine Heavens. She was ready to slay all kinds of enemies.
[Ding! Congratulations on living peacefully for 100 years on the mountain. Your reward is 100,000 years of cultivation.]

pincushionqueen

EndlessFantasy Translation 

10,000 Years In A Cultivation Sect: I Obtained A Powerful Technique From The Start

Valvrave

CrookedLines

A long long time ago, a great war between the immortals and the demons took place in the mortal realm. It shattered the sky and crushed the land. After the war, 90% of the mortal world was ruined.

Blood was flowing like a river, and there was heap after heap of dead bodies.

After the great war, an immortal descended on the mortal world. Seeing that the mortal world was in shambles, he created the Tianyuan School to prevent the world from falling into ruin as well as to preserve humankind.

The school remained absolutely neutral, and they refrained from participating in any disputes or conflicts.

They welcomed all humans to come and cultivate in the school, but the disciples of the Sacred Lands were not allowed to become their core disciples.

Tianyuan Great Monarch, Opening the Immortal Treasure