Overlord (WN) - Volume 1 Chapter 68 part8

History speaks of a famous Genius... a genius who at the start, no adult whished for their child to emanate.GORT FAIRBANG.That's the name.He was the son of the current village chief, the son who won awards and even headed out to prestigious schools in a grand manner.But one day, a few screws came loose in his head, and he decided to return to the poverty stricken village, throwing away his good cards for the live of nothingness!Crazy! Crazy!He must be insane, many concluded.But what they didn't know, was that this one-in-a-million-year genius, had returned with one sole mission in mind.And that was to SAVE HUMANITY!

Lin Sui transmigrated into the cannon fodder of a cultivation text, a cannon fodder with a human cauldron constitution, destined to be a servant. Lin Sui, unwilling to resign himself to it, seduced the Son of Heaven, but when the cut out his Dao bone and transferred it to himself, the Heavenly Law struck him down.

That Dao bone in his body became the System that restrained him, issuing the order: You must retrieve all of his soul, serve him as your master in every world, and spare no effort for him until your dying day!

Lin Su was all smiles as he agreed, but all his life, the thing he loathed most was others telling him what to do.

Therefore…

In the first world, he was an arrogant and domineering, rich and powerful Young Master, while the other person was a pitiful and humble illegitimate child.

He humiliated him by saying he was only fit to carry his shoes, and spoke words of love next to his ear when the noise of the crowd boiled over.

System: You motherxxxxxx [beep——]

Lin Sui, innocently: Aren’t I serving him as my master?

In the second world, he was a newly-promoted top talent in the entertainment industry, while the other person was a former Best Actor who went silent after an accident.

He ridiculed and suppressed him, saying deserved to make a comeback even if he was past his prime, and kissed the scars on his body at night, leaving resources behind to gracefully leave afterwards.

System: [beep——]

Lin Sui, spreading his hands: Am I still not sparing enough effort?

In the third world, he was an S-rank Alpha, while the other person was a mentally-damaged former SSS-rank Alpha.

He looked down on him, saying that useless people also deserved to get back on the battlefield, and when no one was around he said ‘since you can’t smell pheromones, then I will be your omega’, and almost lost his life giving himself to the other person.

System: …..

Lin Sui, smiling: Is my dying day enough?

Even though, in the end, he was tucked away in a golden house by the wealthy upstart, captured by the triple gold Best Actor, and completely embraced by the Imperial Marshal, he was still happy.

System, weeping bitter tears: Big brother, I’m begging you, I won’t tell you what to do any more!

- Description from Novelupdates

Waking up, Kim Hajin finds himself in a familiar world but an unfamiliar body.

Every family has that one person who is born as a sacrifice. For her family, that person was Selene Vale, who was to become a spare for her younger twin siblings success.Due to her innate shy and kind nature, she was not able to connect to her family every since she was young. So, despite her rich background, Selene Vale never felt like a part of the family and was often regarded as the 'First spare' or even 'defective'. That did not change even when the world fell and Apocalypses happened.Selene Vale's first life ended trying to protect her twin siblings, the only people who had yet to abandon her. That was her end......but it wasn't.Due to her sacrifice, Selene Vale awakened her system and innate power and was given another chance at life and survival. And this time, she vowed to free her siblings from their parent's cruel influence. If she was able to do that, then she would be happy with that.But unfortunately, that was not all she did. She also ended up attracting the attention of the big-boss of the Apocalypse, the only L-ranked hunter and the hope of humanity....and also, a long time friend she would rather forget about.