Harem Survival System: Stranded On An Island With Beautiful Women - Chapter 35: Timber!!!

Cheng Yujin was the elder twin sister, who was supposed to be engaged to an excellent man. However she later learned that her fiance, Marquis Jingyong, had proposed to her because he mistakenly recognized her as her younger twin sister. Marquis Jingyong and her younger sister had a deep relationship, and after many twists and turns, finally broke through all hardships and became eternal lovers. While Cheng Yujin was the villain who replaced her sister’s good marriage, kept framing her sister, and hindered the main couple to be together. A really wicked older sister and poisonous ex-wife.

After the younger twin sister was reborn, she revealed Cheng Yujin’s ‘conspiracy’ early on. Everyone scorned her, and her so-called fiance was indifferent. Cheng Yujin sneered and tore off their engagement letter in front of her fiance.

Everyone was gloating and happily waiting to see her regret her actions. However, before Marquis Jingyong had a chance to see Cheng Yujin’s regret, he saw his former fiancee marrying her uncle.

The ninth uncle of Cheng family was truly a hidden dragon, his real power frightening everyone.

***

Cheng Yujin, this coquettish little wife, lightly lifted her eyebrows and casually said, “A mere Marquis Jingyong, is he worthy? Do you think that robbing him away will affect me?”

Almost forgot to say, ninth uncle wasn’t surnamed Cheng. His real name was Li Chengjing, the crown prince.

Du Fei was reborn, and in this difficult era of extreme shortage of supplies, he started his wonderful life of opening and hanging…

- Description from novelbuddy

This novel is also known as Master Fu's Mysterious Darling Wife

She is the The Young Miss of Military family Shen, her face is peerless, her temperament is cold, and she is her family’s treasure, but isn’t accepted as one’s child by her mother;

He is The Sole Heir to the top giant Fu Family, his power is unparalleled, indifferent high-born, the captain of the mysterious military force, and the youngest commander-in-chief.

Because of her grandmother’s wishes, she married him at lightning speed. She thought that it was a marriage that she needed, but she didn’t expect to be greeted with his extreme pampering.

- Description from Novelupdates

In a world where 70% of the population possesses powers managed by a LitRPG chip, Kang Ji-Hoon, a timid young man, joins the prestigious Apex Academy to save his sick mother. Ranked last at F with his seemingly useless ability to summon a dagger, he becomes the target of relentless bullying. Pushed to his limit, he unleashes the true power of his weapon, a dark and destructive force. As he transforms into a ruthless anti-hero, a cosmic threat emerges to assimilate humanity. Ji-Hoon then realizes his dark destiny: to save everyone, he must destroy everything.