The supporting character's harem is very normal - Chapter 13: This is your portion

~She is a waste daughter from the Su family that couldn’t cultivate. On the day before her wedding, the Third Prince breaks off their engagement in the street. Her own sister replaces her in the marriage to the Third Prince. She became the center of gossiping in the city. In her resentment, she hits herself on the Su Family’s gate, only to become the object of other people’s ghost marriage.

She, Su Zimo, open her eyes to find herself sleeping in a coffin. It’s not to surprising seeing as she put herself here (hit head on gate), but why is there another person lying beside her? And whats more they are wearing red wedding clothes. After taking all this in she almost faints.

~He, is a cursed person with an indescribable status. This curse that has been passed down in his family for centuries is now effecting him.

A mistaken ghost marriage, a battle in business, and a long period of painstaking love, made their fate intertwined.

- Description from Novelupdates

# RELAXED # INFINITEDivine-grade Decomposition and Reconstruction System: This allows the user to decompose any object and reconstruct them.…A scraped car? I’ll just disassemble it and make it into a brand new expensive luxury car!A bunch of small diamonds? I’ll just turn them into a 10-carat giant diamond!An old phone? I’ll just make a futuristic phone that won’t appear for another 70 years!”What? Did I get sick? Simple! I’ll just gather a bunch of drugs, decompose them, and make a super medicine out of them!…A few years later, Augmented Reality, the Automated Electronic Management System, air-powered vehicles, humanity's first moon base, and other cutting-edge technologies were all created by a man who was once known as Dumb Lin.

Jian Tian transmigrated into a Mary Sue school novel and became the cannon fodder female supporting character.Although she is cannon fodder, her entire family is full of villains.The villainous eldest brother opposes the male lead and leads the company to bankruptcy.The villainous second brother opposes the female lead and ends up with crippled legs.The villainous third brother is a love-struck fool and ends up on the streets.And she has it worse, being implicated and sent to prison.Why should she be the only cannon fodder in a family of villains? She wants to turn the tables! She wants to rise!However, just as she ignites her fighting spirit, she discovers she’s bound to a system that will obliterate her soul if she doesn't slack off.Jian Tian: “...”Lies down.And she even persuades her whole family to slack off collectively.Seeing the eldest brother working overtime at the company: “Stop working overtime; after all, the company won't be yours in the end! Trust me, first lose 1 billion!”Seeing the second brother busy with his medical career: “Don't work too hard, after all, you're ultimately making wedding dresses for others. Why not research a cure for crippled legs instead?”Seeing the third brother running errands for the female lead: “Isn't being a happy bachelor nice? Why must you suffer for love? Wake up, licking the boots will get you nothing in the end!”The three brothers of the Ji family: “...”Has our little sister gone crazy?Later, after experiencing the joy of slacking, the three brothers: “Hmm, this is nice...”However...We agreed to slack off together, so how did you quietly become a top boss?!Jian Tian awkwardly scratches her head: “There’s too much development in my field; I can't help it.”And the dark villain lurking in the shadows, aggressively wrapping his arms around her waist: “Hmm? How about including me too?”Jian Tian: “...”Don’t come near me!

In the 21st century, she was the talented leader of the hidden family clan, once she crossed over, she became the number one waste?