While Others Cultivate, I Use My Multiverse System - Chapter 148: Recuring stone

This is a world where a king is the most powerful.

An alien abduction romance. Updates Mondays, Wednesdays, and Fridays.Grant has a tolerance for boredom. Late shift in a middle-of-nowhere facility? Sign him up. If the money's good, he'll happily take the peace and quiet of a long night watching an empty cell.And then he meets Subject B-31. Blue, beautiful, and completely inhuman. Her captors call her Batty, thanks to her big ears and the way she hangs upside down by her tail.He's told not to talk to her. He's told to think of her as a test subject, not a person. He's told to cash his checks and live his humble life. He's told to ignore the sorrow on her face and the desperation in her crimson eyes. Maybe he should have listened. When he finally busts her out, the rescue isn't a rescue at all: it's an abduction.Batty is Princess Sykora, of the tyrannical Taiikari Empire. She commands the Black Pike, a massive voidship on the imperial frontier. Grant must learn a new life, in a firmament filled with ambitious nobles, deadly rivals, and the sinister smiles of the Taiikari Imperial Court. And he'll have to learn fast.Because when the Princess of the Void looks at Grant, she doesn't just see a savior—she sees a husband.And she isn't asking.

This is the novel behind the TV series, “Love Like the Galaxy”.
The following synopsis is based on the TV Series.

“The young Cheng Shaoshang was left behind because her parents had gone off to fight in the war. In order to protect herself from her scheming aunt, she had to be extra diligent while pretending to be the opposite. However, years of estrangement have made it difficult for them to become family again.

Lacking love her whole life, Cheng Shaoshang is both pragmatic and insecure in choosing a partner for marriage. She encounters three men – the emperor’s adopted son Ling Buyi, the talented Yuan Shen of Bailu Mountain, and the aristocrat Lou Yao who each have their pros and cons. Although the road to love is bumpy, she never regrets every choice she makes. Through her interactions with Ling Buyi, she unintentionally becomes involved in the mystery surrounding his family and his identity. The two grow from their experiences and worked together, upholding the righteousness in their hearts to resolve a national crisis.”

- Description from Novelupdates

Reborn and returning, he possesses medical skills, can practice immortality, has a slave who is the king of killers, and a maid who is the school beauty pursued by everyone. Even casually taking out a piece of trash can shock the world. His return has set this world ablaze.