Start with the Mangekyo Sharingan: Follow Lord Madara out of Konoha - Chapter 187 - 80: Izanami

Lynch crosses over to the Wizard World and becomes a Wizard Apprentice specializing in Biological Transformation, armed with a Skill Level system.Thus...He equips a lizard with bat wings, transforming it into a ferocious yet adorable Dragon Attribute creature.He transplants gastric mucosa to the Cannibal Flower to enhance its digestive system.He equips the Poisonous Mushroom with a mouthpiece, transforming it into a Little Spraying Mushroom.Transplanting eyeballs, modifying organs, adding limbs...From a little wizard, he hustles his way to becoming the master of the world, starting from the transformation of low-level Magic Plants until he creates an Angel.

Five hundred years later, a superhuman talent cultivated by the state perished during a mission, and his soul transmigrated, taking possession of the body of a young master from a prominent family who suffered from an anxiety disorder. From that moment on, his extraordinary life began, spanning across various fields such as business and medicine. Wherever he set foot, others could only look up to him.

On the night before graduating from university, Wu Xiaoyin’s children’s shoes lost consciousness amidst the sound of big sales from his classmates, accompanied by the expectation of a new life.
Unexpectedly, what I saw when I woke up the next day was a colorful giant tiger.
What’s more, this beautiful giant tiger has a scene of turning a living person into a living person.
Frightened Wu Xiaoyin’s children’s shoes, who had just woken up gorgeously, fainted, so the big tiger dragged the little female Wu Xiaoyin’s children’s shoes back to the tiger’s den, and went to give birth, haha!

Content tags:
Search keywords: Protagonist: Wu Xiaoyin, Lei Lu ┃ Supporting roles: Kos, Feng, Bin, Xiao Kai ┃ Others: Beastmen, Farming, Tianwen

- Description from novelbuddy

Past life, her spirit root was dug out from her body. She had wholeheartedly dedicated herself to the just path, but she was sentenced as an evil demonic cultivator.

Returning back to her juvenile years, she turns the tide. Against natural order, she had been reborn. Those who had deceived and humiliated her, she would return it to them a hundredfold with additional thanks.

Studying her own blood vessels, she recasts the best quality spirit roots. She destroys those rascal clansmen and returned home with glory!

The rules of the world do not hold her down; this time around she kills through the righteous path.

He is the universally admired spirit emperor, high above others, cold, proud and aloof. But every night he sneaks into her room and takes liberties. “Little runt, won’t you think it over?”

“Do I have a choice?”

“You can choose from giving birth once or giving birth twice.”

“Why must I?!”

“Because you stole my heart.”