Konoha's Tag-System Ninja - Chapter 12 - : Shameful Betrayal!

Those people killed her grandmother, murdered her younger brother, trampled the people she deeply cared about, and even took her own life.

It was because she trusted her ambitious stepmother and half-sister;

because she mistakenly believed that womanly virtue is to have no talent;

because of her noble status and origin….This is what caused her death.

Buried in river water, Ouyang Nuan, gritted her teeth and spoke, “I, Ouyang Nuan was wronged in death. Even if it takes forever, I will become a devil, and in the next life, will not let you off!”

When she once again opened her eyes, Ouyang Nuan was sent back in time to when she was twelve years old. Around this age, her forehead was scarred, her brother fell into the water, and in three years she will be married…

In this life, she will try to change everything to guard and protect those she cares for from those with treacherous intentions. She will live a glorious life!

- Description from Novelupdates

What happens when a scientist from a futuristic world reincarnates in a World of Magic and Knights? An awesome MC is what happens! A scientist’s goal is to explore the secrets of the universe, and this is exactly what Leylin sets out to do when he is reincarnated. Dark, cold and calculating, he makes use of all his resources as he sets off on his adventures to meet his goal. Face? Who needs that… Hmmm… that guy seems too powerful for me to take on now… I better keep a low profile for now. You want me to help you? Sure… but what benefit can I get out of it? Nothing? Bye. Hmmm… that guy looks like he might cause me problems in the future. Should I let him off for now and let him grow into someone that can threaten me….. Nahhh. *kill*-

Alternative: Leylin is transported from an advanced technological era into a medieval world— except there’s magic. Equipped with “only” his quick wits and an A.I. chip fused to his soul, he sets out to become the most powerful magus the world has ever known. In a land divided into the Light and Dark Magi, the weak can either be cattle or disposable slaves. Only the strong can determine their lives, and only they have the luxury for virtue. Yet strength is only a tool for Leylin, like any other. His goal, in the end, is his own.

The protagonist, Punk, is a cautious, cold-blooded, and ruthless Mage.

His goal is always his top priority, over feelings or morality. When unnecessary, he doesn’t like to act like pigs to eat tigers; there are almost no life and death struggles, sometimes risky but steady progress. No strong enemy everywhere, Instead, Punk is always a strong enemy of others.

And he has a very keen interest in the secrets and teachings of the Netheril civilization.

[1v1+high sweetness+group favorite+wife chasing crematorium! 】

The old lady of the Xie family bought a little girl from outside, saying that she was going to be General Xie’s wife. General Xie who learned about this said: Even if I can’t stand up in this life, I will never marry such a scheming woman!

The little girl nodded with red eyes: I understand, General.

General Xie’s grandmother: He doesn’t think that he is unlucky. There are so many young talents in Yandu. I will look for Ah Fu later. His leg is broken, so he is not good enough for us Ah Fu.

General Xie’s younger brother: Then I have to marry Sister Ah Fu as my wife when I grow up~

General Xie’s sister: So my brother hurt his leg, I thought he hurt his eyes, why is he so blind!

–

Later, when General Xie saw Jiang Fu smiling at others, he found it extremely dazzling.

He pushed him against the door, and said aggrievedly, “Ah Fu, don’t be afraid of me.”

- Description from novelbuddy