The Heroine is My Stepsister, and I'm her Final Boss - Chapter 5: "The Language of Violence"

Xiao Rou, a girl growing up in a poor countryside family, finds that she’s actually the daughter of a wealthy couple. Her mother had mistaken another girl for her back at the hospital. Thinking she would change from an ugly duckling to a noble swan and live happily ever after with her real family, reality strikes her in the face.

In the 21st century, Wu Yue originally thought she was a lonely ghost, but she didn’t know that she was from the 1980s until she was reborn back to her own body.

After all these years of losing her soul, she has always been a fool.

Her father also ordered her a baby kiss?

The other party is still the sweet pastry that everyone wants to marry.

Wu Yue, who has been nurtured in the new era, decided to get rid of this fiance who thought she was a fool.

But she didn’t expect that there was a tall person waiting for her in front of her.

The new book has been opened, {the world is not as good as you}

- Description from novelbuddy

She is intelligent, beautiful, calm, and professional. As the youngest chief forensic investigator for the past few years, her future was very bright. All of this, however, changed with a bizarre time-travel.

Cassian Ven Dyke, the bastard son of a powerful ducal family, grew up in the slums of Veldora under the care of his father figure, sword master Russel. When Russel passed away, Cassian was left with only a silver necklace as his inheritance. After putting it on, Cassian was attacked by three psychotic thugs who tortured him in an attempt to steal the necklace. Refusing to give in, Cassian was ultimately stabbed through the heart with the very same necklace. Instead of dying, he mysteriously vanished as the necklace lodged itself in his heart. Just before disappearing, he heard an eerie message echo in his mind:[True mana detected. Origin: Human...][Human detected. Compatibility with system: Confirmed.]