Side Job: SSS-Class Necromancer! - Chapter 4: [System!]

Beneath the vast and infinite starry skies of the universe, countless tribes engage in endless strife, and the flames of war remain unquenched.Rising from insignificance, he possessed no exceptional talents, except for the ability to draw upon the fruits of cultivation from the future.Yet, in a single night, he understood the Dao, and took a step that shattered the shackles of life.With but a thought, he grasped the universal powers, casually breaking down the barriers between spirit and reality.To him, even the most profound and enigmatic of secret tomes were as simple and dull as children's books.Still, he had to go back and fill in the gaps of his cultivation...Some appeared to be glorious, unparalleled geniuses.In reality, they practiced like mad in the shadows to repay their debts...

Han Yun was spoiled from childhood.

He survived past his emperor dad and crown prince elder brother, and became an emperor.

He didn’t know how to govern the country, but he was lucky—there was a Grand Preceptor who “assisted” him, spoiling him even more than his father did.

After just a few years, this puppet emperor died. When he awakened, he had transmigrated into the modern world, becoming a third-rate model struggling alone without any loving parents.

Just when he thought he had become a little cabbage that nobody wanted and no one would ever spoil him again, a certain ancient monster of a Grand Preceptor who had lived 1,000 years appeared again… and looked to be doing quite well for himself.

The utterly impoverished little emperor had tears in his eyes: “Beloved subject! Zhen (royal We) have missed you so much!”

Grand Preceptor: “Your Majesty, this minister has waited for you for a thousand years.”

- Description from Novelupdates

The teenager Long Ao, ten years of silence, was reduced from genius to waste, and was ridiculed and mocked.

Ten years of persistence, ten thousand failures, and finally won mysterious Dragon Seal.

With Primal Chaos Saint Body, cultivation invincible cultivation technique, refining Heaven and Earth, devouring endless stars, sweeping the wasteland! Ask the vast stars, who dares to fight me? Boundless Starry Sky, War God! …

- Description from Uukanshu