I Reincarnated as an Extra in a Reverse Harem World - Chapter 1: Prologue

Do you know how this world ends?

In the rebirth, in order to prevent the tragedy of the previous life from happening, Bai Yu decided to rush to the [Tower of God] at any cost, and face everything together with his sister!

However, Bai Yu, who was bound by the system, mutated his bloodline, and transformed into a black-scaled python seems to be developing on a completely different path from his previous life…

- Description from novelbuddy

Ye Xiong was an infamous war machine — feared by the world and known to many as the God of Death. After an incident, he returned to Jiangnan city and faked a marriage to the Ice Queen President, Yang Xinyi.This is the story of a shameless sugar baby and his quest to conquer a group of beautiful girls, including the Ice Queen President, and win their hearts!

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