MTL - Stunning Poisonous Doctor Princess - Chapter 1 Volunteer

A teenager named Evan Mason was reincarnated into the magical world of Harry Potter and goes to school at Hogwarts!
With only his knowledge of the future and great talent for magic, he takes the path towards the top of the magic world, only to realize that ever step he took, changed everything!

- Description from Novelupdates

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~

He was the powerful and influential heir of B City, the merciless head of the commercial world, but the divorce papers made him lose his cool.

“Sign the divorce papers, daddy,” said the 5-year-old boy.

This man had the divorce papers thrown in his face by his wife six years ago, and was now being pushed by his own son to sign the papers.

“That would make you a single-parent child,” said Gu Juexi coldly.

“Mommy said unicorns don’t exist but men like you do,” the boy leered at his father and said.

Gu Juexi’s face fell. ‘That damned woman.’

“You haven’t signed the papers,” the boy reminded as the man left. As usual, the door shut in his face.

Good lord… Dad and mom are not getting a divorce and are giving him a baby brother? How worrying!

She was the little chief secretary at Huo Yunting’s office, who carried out jobs both on the table and “under” the table.