The End of The Earth (MTL) [COMPLETED]

*WARNING!! a machine translation novel. So don't come at me about a bad grammar*

Original Title : 地球末日［ABO］
Author : 雪莉 (Shirley)
Status : Completed (98 chapters)

Copywriter :
A terrorist attack, a zombie virus invaded the world, that day, ABO all had different degrees of mutation. Omega, who had always been weak, became the fierce zombie most difficult to destroy in the end.
In order to obtain first-hand technical information from the outside world, the female beta Cheng Jian, who just graduated from the Academia Sinica, was sent to the special operations team and became a hard-working technical soldier.
Not only do I have to face the more arrogant alpha teammates under the apocalypse every day, but even more terribly, I have to endure the cold head like an iceberg.
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Cheng Jian: It is said that after graduating from the military academy, I will wear a slit female officer's skirt to serve as a secretary for a young doctor! Why let me kill the zombies! The key is that you actually got me a more terrifying head than zombies!
Xu Wei glanced at her coldly, "Stare at me and throw you off the helicopter."
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Cheng Jian quickly glanced down, and countless zombies crowded in the abandoned city were stretching their arms crazily upwards.
Cheng Jian withered, she felt that her mother should not have given birth to her.
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You guys don't how rare a one on one female and male relationship in ABO category. Usually it's a BL or reverse harem.

So basically ABO is alpha, beta and omega. So there's 6 genders in this world (male alpha, female apha, and so on). Beta is lowest and can't breed. Usually very emotionless. Omega is the one that will constantly on estrus (male omega can get pregnant). And alpha is the dominant and usually the strongest. MC here is used to be omega but modified by medicine to be beta. ML is a true alpha.