Naruto: I'm Not a Pokémon - Chapter 347: Phantom Thief Uchiha Kaito

「Shimizu-san, you dyed your hair black.」「Ah, yes.」「Why did you dye it all of a sudden?」「Because…yesterday…」Shimizu-san, who sat next to me and had dyed her hair from blonde to black gradually lowered her voice, slightly blushed, and laid her face down on the desk.

After transmigrating into a beast world, Rong Mingshi discovered that the people of this world experienced widespread mania. For example, when their emotions were abnormally agitated, they would become destructive beasts. If their emotions were abnormally low, they would shrink into their young beast form.

He Lang died by his own hands for the sake of his imperial younger brother’s ambition, whom he loved. He was offered to be reborn in exchange for giving up his past romantic feelings. Reborn without the burden of his romantic feelings, he brings with him a manual to new worlds. He wholeheartedly followed the instructions of the manual to complete the tasks, not knowing that the originally slag gong was blackening…
He pleaded to his affectionate Emperor brother to release him, he pleaded to the paranoid prisoner next door, but until the end he remained baffled.
In the end, he discovered that the full name of the manual was – “Slag Shou Cultivating Manual”
Σ (っ ° ° °;) っ!

- Description from Novelupdates

In her last life, Yu Lingxi fell from a myriad of stars that surrounded the moon into the dust, and was forced to sacrifice herself to the regent, Ning Yin.

The regent was born handsome and beautiful, but unfortunately he has a crippled leg. He was a twisted and cruel madman who killed his brothers and father.

What Yu Lingxi was most afraid of was that while wiping the fresh blood on his hands, he smiled and said to her: “Lingxi, come here.”

After only two years of marriage, Yu Lingxi passed away suddenly.

After her death, Ning Yin did not set up a mourning hall, did not make funeral arrangements and buried her, and became even more insane, slaughtering the city with blood.

Then she was reborn at fifteen years old, when she was still a high-ranking noble daughter of the general’s mansion, and Ning Yin was not yet the regent who covered the sky with one hand.

Unable to swallow this anger, Yu Lingxi took the guards to find Ning Yin, who was living on the street, and intended to beat him anonymously to avenge the resentment in her previous life.

Unexpectedly, when she rushed to the scene in anger, she saw the thin boy curled up and was being pressed to the ground, and his left leg was about to be broken. The muddy water was covered with blood and trickled down, soaking his dark and resentful eyes red…

Only then did she realize what a pitiful past Ning Yin had.

Yu Lingxi made a mistake due to a strange combination of circumstances, and instead of going to beat someone, she went to save him.

She had no choice but to take in the little poor boy and try her best to teach him to be an upright young man with a healthy body and mind.

To her surprise, as she taught and taught, the little poor boy looked at her with more gloomy and strange eyes.

- Description from Novelupdates