Toaru Majutsu no Index: New Testament - Volume 4, Chapter n: Even If There Is Death. Dead_to...

Seven billion humans living on the Earth time-traveled together after they had woken up one morning. They all heard a synthesized female voice.

Gou Liang travels through worlds in order to complete a mysterious and arduous mission…

16 worlds in total:

School Campus: Strawberry Flavored Scholar Gong √
Entertainment circle: Lemon Flavored Film Emperor Gong √
Ancient Time: Honey Tangerine Flavored Shadow Guard Gong √
WuXia: Melon Flavored Senior Brother √
Beastmen: Pineapple flavored Beastmen Gong √
Ghost Spirits: Snow Pear Flavored Dead Gong √
Ancient Time: Gr*pe Flavored Regent Gong √
Apocalypse: Banana Flavored Boss Gong √
Interstellar: Pomegranate Flavored Sentinel Gong √
Modern: Citrus Flavored Aristocrat Gong √
Mecha: Sweet Jujube flavored Lunar New Year Gong √
Ancient Time: Durian Flavored Battle God Gong √
Magic: Watermelon Flavored Blacken Gong √
Cultivation: Cherry Flavored Disciple Gong √
Fantasy: Blueberry Flavored Demon King Gong √
Celestial World: Bayberry flavored Senior Immortal Gong √

- Description from Novelupdates

Cen Shuang used to be the daughter of a wealthy family. After she fell from grace, she was forced to bend her back just to make sure she had enough food. She was sold by her uncle for 10 million to the wealthy Zhuang family as the bride that would counter the bad luck in the Zhuang family.

She married Young Master Zhuang, who went into a comatose after a car accident. Everyone viewed the marriage between the fallen daughter of a once rich family and the comatose young master as ridiculous.

The socialites who were once under Cen Shuang’s feet were all waiting to see Cen Shuang make a fool of herself. Unexpectedly, on the night of their wedding, Zhuang Hong, who was in a vegetative state, suddenly woke up.

Cen Shuang instantly transformed into the Zhuang family’s benefactor, and the Zhuang family were extremely protective of her as they doted on her. Grandpa Zhuang asked, “Lil Shuang’er, do you want a black card?”

Mr. Zhuang asked, “Lil Shuang’er, are you bored staying at home all day? Should I give you a company to toy around with?” Mrs. Zhuang said, “This is the newest season’s haute couture. Throw those in the last season away since you’ve already worn them.”

Zhuang Hong, “Nothing about my wife concerns you!” From necessities to food and accommodation, the man did everything himself and spoilt Cen Shuang to the extremes.

Outsiders were jealous of Cen Shuang’s good fortune, but little did they know that this joyous occasion had been long premeditated. Zhuang Hong, “A single look lasted for ten thousand years. After many twists and turns, I finally married the girl I like.”

Cen Shuang, “I thought that there will only be darkness in my life, but there’s a silver lining waiting for me.”

Yan Xi was the eldest young lady of Beiqiao City’s top four families, the Yan family. Despite her talents, she was sickly and destined to die young. She was an unattainable dream girl for many.

One day, she had a dream, and the setting was in a novel. In the novel, for the sake of alleviating his pain of losing his wife, and soon his daughter as well, her father adopted a girl named Chen Xiangxiang who looked just like her. The girl was docile as a deer and very therapeutic, which made her all the more lovable. This girl became her substitute, and after a series of heart-wrenching incidents, everyone, from her father, brother, fiance, to her friends, they all doted on this girl. Meanwhile, she, the real rich daughter, was schemed against. After being disfigured, she jumped from a building and fell to her death.

Now, she returned to the moment when she was just discharged and before the tragedies happened. She lowered her head and looked at the person before her. She smirked. This time, she would control every development, and those who intended to harm her could forget about escaping.