I Wasn't Born Lucky - Chapter 28

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

That day the sun set and never rose again...............Author Spotlight:Chen Dong — WebNovel's legendary titan behind global phenomena like 'Perfect World', 'The Sacred Ruins' and'World of Longevity‘— returns with his most ambitious saga yet. Crowned among the platform's all-time greats, this master of epic worldbuilding has dominated fiction charts for many times, with multiple novels adapted into hit games. When this trailblazer drops a new book, millions brace for sleepless nights.

The big guy dresses up as a lonely and old male supporting character, slaps his face and abuses scumbags to fall in love.
small world:
A scumbag male supporting actor who is lonely and old: learning to love with both hands.
The tyrant male supporting role who left the inheritance to the heroine’s son: the family has the throne to inherit.
The deposed prince: what kind of emperor, when the emperor!
Bingshan ex-husband of a book girl: It is impossible to chase after a wife.
The prince of the enemy country who retreated for the heroine: step on the capital and rule the world.
The pet girl mad demon of the group pet text: I pet myself.
Edible Guide: Quickly cross the routine, capitalize the romance! One cp in one world, if you change the world, your feelings will be eliminated. If you don’t like it, don’t enter. 

Content tags: face slap
Search keywords: Protagonist: Dongchen ┃ Supporting role: My concluding article “The Male Protagonist Doesn’t Follow the Plot [Quick Pass]” “Someone Wants to Take My Gold Finger [Quick Pass]” ┃Others:

- Description from novelbuddy

The Bootlicking Antagonist Wants to Survive, but Female Lead refuses to follow the plotOne car accident and I’m transported into a city power fantasy as the villain. As long as I survive until the grand finale, I can return to the real world with hefty rewards. But! These stunning beauties don’t go to serve as the protagonist’s harem, they surround me every day. Are they not satisfied with how slowly I’m dying? Stop wearing stockings, stop wearing uniforms, what’s with all of you trying to seduce me? To find Long Aotian! Since destiny is in my hands, I might as well challenge the protagonist directly! Who’s the protagonist, damn it, who knows!