Dorothy's Forbidden Grimoire - Chapter 9: Spoils of War

Su Yao passed through and traveled to the Marvel world to become a mutant. He was still in the experimental base. He expressed a little panic…

Fortunately, at the critical moment, the mutant ability ‘imitation’ was awakened to imitate the opponent’s ability!
…
Imitation object→Orochi (title: Sun God, Will of the Earth)
Imitation object→Wanda (title: Scarlet Witch, owner of chaos magic)
Imitation object → Sun God…
…
Professor X: “We must find him as soon as possible and guide him to control his power to avoid causing irreparable disasters!”
Magneto: “You are my child???”
Thor: “Brother?”
Loki: “?”

- Description from novelbuddy

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!

She was transmigrated into a novel where she became the cannon fodder who abused the male lead and ultimately suffered her demise under said male lead. And to return back home, she had to obtain the city boundary map first.

Ye Mu doesn’t want to play a game! Now that she’s inside the book with such a plot, the only way around her death is to kill the male lead first and let this world collapse!

However, upon seeing a scraggly, skinny little boy whose brows were full of perseverance, her hand won’t move…

Well then, she would subdue the male lead’s tyrannical tendencies! How to do it? Raise the male lead and have him help her find the city boundary map? That’s a good idea!

Despite raising him properly, the male lead seems to have grown into a devious man who won’t listen to her. Moreover, he lures her over with the city boundary map.

“Do you want this or not? Then come to my bed.”

Her face was full of tears. Where was the promised honest and upstanding monarch? Does she have to raise him all over again?

The man smiles and pats her on the head, “Come on, stop crying. Wash and go to bed.”

- Description from Novelupdates