MTL - Immortality Gu Tao: Start By Refining the Infatuation Gu - Chapter 48 A middle-grade alchemist with perfect scores on elixir theory.

In a world far more dangerous than the one he once read about, Nero Ravenclaw is reborn as the heir to Rowena Ravenclaw’s legendary bloodline. Armed with knowledge of the books and a mind sharpened by experience, he quickly realizes that this isn’t the same Harry Potter universe.It’s darker, deeper, and filled with wizards far more powerful than he ever imagined.Determined to carve his own path, Nero seeks to reach the apex of the magical world. As he unearths the secrets of the founders, navigates political intrigue, and clashes with forces both known and unknown, he must forge his strength to survive.With new ranks of wizards, powerful bloodline abilities, ancient magic, and a reimagined magical system, this is the untold story of a Ravenclaw who refuses to be bound by destiny.The wizarding world is far greater than anyone imagined.And Nero intends to claim his place within it.Disclaimer : I don't own Harry Potter or its characters (except the original characters I create).

Athena Grant,a human,dies in a car accident and becomes Eira Liora,an elf. Transported to the barren and cursed island of Luinmir, a once-thriving land now abandoned.A year ago,their King announced that the island,Luinmir would no longer be under the empire's control. It was well known that the land was barren and poverty stricken...She was abandoned both by her Kingdom and her Father.She wakes up one day with a system.“So what if they were abandoned and deemed cursed,she would show them all the highest peak of knowledge and development. The island's core is broken...fine,she'll get it replaced but this time,the island would become hers to keep,she would make sure of that.”

He is high above, the mysterious and terrible King of the Wild. With one glance, he can see people’s romances. He hates women to the extreme, but at his first glance of her, he dotes on her and spoils her.
She is a humble transmigrator, a miracle doctor who doesn’t care for the many handsome men around her. She only wants to become strong, to be worthy of that god-like man. But when she’s finally sure of her feelings, she finds out she’s already been married for years…
……
When wronged：
She uses strength to hit the big handsome iceberg-like man in front of her eyes. “People say that I’m not good enough for you, but it is you who is an old cow eating tender grass!”
A man seizes the main point and laughs like an evildoer. “This husband has to eat the grass to confirm if it is tender or not!” He puts out the red candle……
……
The world says：
The barbarian king has no heart and has no passion.
A pregnant woman very miserably thinks,” If he has no passion, then who is responsible for this big belly?”

- Description from Novelupdates

For non anime fans- Yandere is extremely possessive girlsIn an open world MMORPG game called Stellaris Fantasia Online, me and my partner we're rising to the top, killing other players, farming loots and so on....But, yes, this partner of mine won't let me play with others.... even with my friendswhy? because she's a Yandere....Its so irritable that I unfollowed her.... well that decision hurts me too, since she might turns out to be a hot onee-san (older woman)But as soon as I attend the class, my homeroom teacher is in bad mood...Why??Just read the title....