MTL - The Lady’s Sickly Husband - ~ 207 is it, only it deserves it.

The world that nurtured the civilization which reached the pinnacle of magic was on the verge of destruction.
The last survivor transmigrated to the past, when the magic civilization started growing, as countless mages were still fumbling their ways through the thorny paths of magic knowledge.
He, who came from the end of the magic era, aim to reach the pinnacle of magic.

Ye Tian is known as a genius throughout Lava Town. He opened his public region sea at the age of 10 years of age, and historically, can be said the first genius to do so. Later in Mo Academy, his awakened talent is just a waste field [Black Soil Space Field].

But he found that his black space is not simple: Anything from pills to artifacts, he just need to plant them in the black soil , and he can get more than a dozen pieces of same pill or artifact with an upgrade as fruits…

- Description from Novelupdates

After a long time in the darkness, a lost soul is transported to another world, and there the soul is given another chance and is reborn as a boy...In a world of swords and magic, Zaos is given another chance after hearing an unknown voice asking him to protect someone. While he couldn't remember many things about his old life, he still decided to live his new as much as possible. Even though it looked like he was destined to do something, Zaos chose to follow his own path as much as possible.He tried that... but it looked like the machinations of destiny won't give him much option. Weird things were happening in the kingdom he was born, and before he could imagine... Zaos was throw in the middle of a war in which some were trying to revive the god of the world, and others were trying to prevent it. Zaos will fight in this war while he also looks for the person he is supposed to protect.The story, all names, characters, and incidents portrayed in this production are fictitious. No identification with actual persons (living or deceased), places, buildings, and products is intended or should be inferred.

Perdi, known widely throughout the continent, is a very famous author of adult novels. But Perdi’s true identity is actually Vivian, the Imperial Night Librarian.

Vivian sends over the fourth draft of her latest novel to her publisher to be reviewed, but her work is criticized because the way she writes hetero s*x scenes isn’t erot*c at all.

“What? So you’re saying I’ll only know what sexual relationships are like after I experience it myself? But what can I do when I’m bound to a chastity contract?”

Unfortunately for Vivian, she had to sign a chastity contract in order to be hired as an imperial servant, and has been forced to remain a virgin ever since. Worse still, only a member of the imperial family could break the contract … but Vivian only has eyes for Ray, a mysterious man who visits the library every night.

But as it turns out, Ray is the imperial archduke and the emperor’s brother! One day, he approaches her with a sweet offer that she can’t resist …