I've Already Confronted the Five Kage, and the System Just Arrived! - Chapter 142 -

She was the Fifth Young Miss of the revered General’s Residence, but was seen to be useless as trash. Promiscuous and flirtatious to a fault, she was finally killed by mistake under the hands of the attendants of the man she was chasing; She was a genius favoured by the Heavens but ultimately murdered by an insidious plot and all who shared her bloodline pursued and exterminated which caused her to lust for revenge to be paid in blood. The day the genius had unwittingly taken up the body of that useless trash and opened her eyes, her fate had completely changed!!!

Refining elixirs and the smelting of weapons were tough?
That did not daunt her.

Beast Tamers were rare?
She had easily gained the title of Emperor Beast Tamer!

Forced marriages!?
Men being arrogant because they are good looking?
She stretches her hand out and easily pulls devilishly handsome men to her: The Demonic King brothers would easily take their place. A devilish glance, a slight shimmer of movement, and that man would suddenly disappear the next moment. He turned back around, his devilish smile alluring: “Let’s continue with the topic, let’s have a child!”

This is another interesting story with transmigrating and very fun filled characters that will delight you.

- Description from Novelupdates

Jin Watanabe, a renowned genius programmer, died from overworking on the latest project that his clients had piled on him.Instead of the peaceful eternal rest he had hoped for, he opened his eyes in a fantasy world—only to realize he had been reincarnated into the frail body of a sickly boy who was already on the verge of death.“Young Master Jin is trash. Can't even cast a single spell.”“The Raith family's shame.”“He'll be dead within the year anyway. Who cares?”But then, to his surprise, strange words began floating above the teacup beside his bed...[Warning: Lethal Substance Detected][Analyzing...][Identified: Poison][Ultimate Editor system Activated...]Jin stared at the floating strings, then looked around and checked other objects.They called him trash. They tried to kill him. They thought this world belonged to them.They were wrong.Because Jin could see reality as code. And he was about to hack their world..........Join Discord for character arts and more:https://discord.gg/6YrfWD72YQ

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

To correct the mistakes of his past, a young man is forced to narrow the space between science and witchcraft, as he ventures on a quest to save his world from complete destruction.