The Villain's Redemption - Chapter 348 - Serial Killer

She was originally the young miss of the Marquis Estate, but became a peasant girl due to a mixed-up at birth.

Su Wan is a Realm Destroyer. She shuttles to different time-spaces using the identity of the “Cannon Fodder Ex-Girlfriend”, dedicated to plotting how to happily tear apart the male protagonist and the female protagonist. –There’s no such thing as protagonists who can’t be torn apart, only Ex-Girlfriends who don’t work hard enough~

- Description from Novelupdates

Lu Jiangxian died after staying up late one night. Yet, he finds his soul trapped in a fractured, bluish-gray bronze mirror. He falls into a boundless world of immortal cultivation and finds himself in the perilous landscape of Mount Dali. There, a small family from a small village by Meiche River picked the mirror up and is bestowed with the ancient teachings of the immortal ways, heralding the dawn of a splendid new era.