I'll Teach You, Marianne. - Chapter 1 - Betrayal Of A Friend

[WSA 2025] To confront the threat posed by monsters and demons, humanity summons a hero endowed with a mysterious system and an unrivaled capacity for evolution. He becomes the last bastion of hope for mankind. However, one of his mistakes gives rise to a calamity far worse than the Demon King.This calamity is conceived in a dungeon, abandoned as a fetus by its mother, and raised by the Demon King himself. Upon the Demon King's death, all the restraints he had placed upon the creature are shattered. Thus, the hero's nameless son begins to lay waste to everything. The greatest calamity the world has ever known is born.

This novel is also known as Fey Evolution Merchant

The shining stars and birds flying in the blue sky and white clouds, the fast shadow clouded leopards hunting and hunting in the vast grasslands, the acid eroded pythons hiding in the shadows of trees in the mottled rain forest, and the chalky Canglong dragon under the deep blue sea.

Lin Yuan found that he could allow infinite evolution of spirits, and continuously purify the bloodline.

Dust butterfly-stainless steel butterfly-emerald green butterfly-royal tourmaline butterfly.

This is a pure pet article, a world of beast masters.

- Description from MTL

On the opening day of Illusionary Moon, I realised that I had many more items in my inventory as compared to other players. One Shura Secret Codex, an Achievement Manual and also a really mysterious bracelet.

I didn’t know who gave me all these, I also didn’t know what triggered the system bug. The only thing I knew was that this was the beginning!

The world will tremble because of me, the mountains and rivers will awaken for me. 700 million girls will be attracted to me, because I might really be the strongest character in this world!

When Yu Yao opens her eyes, she realizes that she has transmigrated into a book that she had once read. It’s a book containing a typical story about a real daughter and a fake daughter.

The real daughter was framed, and the fake daughter was pampered by everyone. Her biological brothers had only been doting on her fake younger sister—who had been switched at birth—and hated Yu Yao tremendously. They even believed her fake sister’s lies and sent Yu Yao to a mental hospital.

Yu Yao is in the mental hospital being tortured by a perverted director when the story begins…

Our protagonist has transmigrated into the body of the pitiful real daughter, Yu Yao. She is racked with helplessness at having to endure this living hell...

What bothers her the most was that this was only the beginning. She’s aware that even if she escapes the hospital, her fake two-faced sister would not let her off so easily. Her elder brothers, who do not recognize her as family, would also help this deceptive snake in dealing with her. In the future, there would be constant trouble, and living a peaceful life would be far out of her reach. Just as she perks up and prepare for battle, there seems to be a shift in plot...

The Second Brother, who had always been the meanest to her, rescues her from the mental hospital hastily and starts showing her concern. He is tender and affection is written in his eyes.

Meanwhile, her most ruthless Eldest Brother, who had never considered her to be his younger sister, starts treasure her. He begins listening to her every demand whilst cold-shouldering her two-faced fake sister.

Yu Yao is confused. What’s going on here? This isn’t in the script! Why was she, who was supposed to be shunned by all and constantly the target of their bullying, suddenly being pampered by so many people?!

It was only after a long time that Yu Yao realizes what had happened—her elder brothers are all transmigrators too!

Originally, the book ends with a tragedy befalling the family. The two-faced fake sister betrayed them all and sent them to a tragic end. It was Yu Yao who rescued them and died in the process. After Yu Yao’s elder brothers transmigrated, they swore to protect Yu Yao with all their might as they worked endlessly to win her favor.