MTL - I, Doomsday, Have Been In the Core of the Sun For a Hundred Thousand Years - Chapter 75

Chen Sha came to a world of immortal martial arts and was ordered to take charge of the world’s first sect.

Before his death, the previous chief told him:

“If you don’t become the best in the world for one day, you are not allowed to go down the mountain for one day.”

So he closed himself in painstakingly, crossed the heaven gate in his body, and faced off against the ancient and modern powerhouses…

…

Many years later, Chen Sha recalled the day he went down the mountain,

From the moment he descended the mountain, he was number one in the world.

In the next ten epochs, any gods and demons have returned, immortals and Buddhas have lived in the world, ancient powers and ancient gods have appeared one after another.

No matter how the times change, he has always been No. 1 in the world and has never changed.

- Description from novelbuddy

The story is centred around a cute android who initially had a happy life with her master who dearly loved her. But she was then struck by a series of misfortunes and ended up in a robot-equivalent of concentration camp. Through experiencing and witnessing the sufferings towards herself as well as the people/robots around her, she eventually gained a better appreciation of life.

Is it hard to become a mage? Are those who master magic truly one in ten thousand?Just grind it out!!!Minor Fireball, Fireball, Greater Fireball, Explosive Fireball, Chain Fireball, Meteor Fireball… Great Sun Nuclear Blast!Novice Apprentice, Mage Apprentice, Novice Mage, Mage, Archmage, Legendary Mage, Saint Mage… God of Magic!……“Wait, am I already invincible?”

Because of a chain bracelet, Bai Min inadvertently crossed over thousand years to become Daxing dynasty’s Murong Feng.

She married the mischievous and unruly 4th Prince Sima Rui.

Won’t this marriage disappoint the owner of the soul and body?

From their uninterested beginning until they slowly getting to know each other and finally got together.

An accident made this marriage predestined by fate became an autumn dream.

Eventually Bai Min cannot resist the longing of the heart and also cannot avoid the calling of her lover in the dream. She abandoned everything to cross over a millennium once more.

This affectionate love without regret and willing to give up everything was met with continous twists and turns.

She made a pact with her lord to be fated for three lives. Across a millennium, was it possible not to disappoint this lifetime?

- Description from Novelupdates