MTL - Undead Farm - Chapter 420 Wake up, undead!

Ryo Tanaka, a struggling college student, works tirelessly at multiple part-time jobs to make ends meet. In a bid to earn some extra cash, he volunteers for a paid drug research study, unaware that it will alter the course of his life forever.The experiment takes a disastrous turn, leaving Ryo bedridden with a high fever for several days. But when he finally awakens, he finds himself in a world plunged into chaos. A deadly virus has ravaged the city, turning its inhabitants into ravenous, flesh-eating zombies. Streets once bustling with life now lay desolate, the remnants of civilization crumbling under the weight of the apocalypse.

As long as the land is square, Yan Bicheng should divide the world into four parts.
The dark organization “Ruyimen” has abducted children for many years, trained them as assassin agents, and sent them to the families of various countries for use in order to collect a lot of secrets, and gradually extended their evil hands to the court.
Feng Xiaoya, the favored minister of the King of Yan, suffers from bone melting disease. She is unparalleled in her “sickness and beauty”. For some reason, she abandons the eleventh wife, Qiu Jiang, and puts her under house arrest in the mountains. Qiu Jiang, who has forgotten his past, fled alone on a stormy night. After several twists and turns, on the way back, he met Yi Fei, the third prince of Cheng who was in trouble in a foreign land.
One wants to regain memory, the other wants to regain the throne. The two people who are incompatible with each other walk side by side towards Cheng in a bloody storm… but they find that the Ruyi Gate, which has been entrenched in Chengjing for a hundred years like a poisonous snake, seems to have undergone an unknown shock… …
The situation of the Four Kingdoms is back, and there is only one goal – to eradicate the evil organization Ruyimen!
However, as Qiu Jiang’s memory slowly recovered, a unparalleled secret finally surfaced…
Mrs. Ruyi, who is it? There is another mystery behind Ji Ying’s death?
What is the purpose of this return journey after a narrow escape, and where does it go?

- Description from novelbuddy

Adeline didn't expect she would transmigrate into the trashy novel she read years ago. The plot was so cliched that she couldn't bring herself to finish it. Years later, she found that very book on her bed, the page was open to the villainess' execution and before she knew it she found herself in the very novel she hated.The evil villainess who couldn't stand her two childhood friends become completely enamoured by the female lead, she decided to take care of the matter herself and thus became the public enemy.She now became the villainess of the story!“I do not accept this!” Adeline yelled at the top of her lungs. “I will change the plot.”The Crown Prince she rejected won't leave her alone. The cold Northern Duke clung to her and wouldn't let go. The Arch Mage wants to abandon his duties and serve as her personal knight, and the Head Priest is obsessed with her!The Male leads she wished to avoid won't leave her alone!

When a person dies, they either die light as a feather (aka unimportant) or heavy as Mt. Tai (aka very important).