Ghost in the City: Cyberpunk Gamer SI - Chapter 38

A man was transported to Ancient China and eventually became a servant of a declining household without a male heir. He utilized his wits and modern knowledge to help the household and eventually become trapped in the sea of political turmoils of the period.

- Description from Novelupdates

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

This world has Fox Fairies, River Gods, Water Monsters, Great Demons and Cultivators who seek immortality.

They stole his future. Now, he’s rewriting reality.Ryan was at the top—champion of the world’s biggest VRMMO, but one wish changed everything.“I wish I could start over.”The Orb of Wishes granted it. Literally. Time snapped backward. The world unraveled. And Ryan woke up years in the past, holding his younger sisters close in a rotting apartment, broke and desperate.This time, he’s not starting from scratch.He remembers it all. Every hidden boss. Every bugged quest. Every game-breaking secret. While the world waits for the launch of Kingdom Forge, Ryan prepares to tear through it like a storm.But when he logs in, something glitches.His old character is locked. His class is reset. His power? Supposedly gone.Then the system flashes something strange:[Access Granted: Legacy Bank Synced][Warning: You were never meant to exist.]Ryan grins. He doesn’t need a strong class. He doesn’t need fair odds. He has what nobody else does—endgame knowledge in a beginner’s world, and an account holding gear, gold, and exploits that broke the game once before.He’s done being a pawn.This time, he’ll become the glitch the system can’t contain.