A New Snake In The Shinobi World - Chapter 297 -

Xia Yan passed through to the world of Bleach and became an eleven-year-old boy. He was rescued by Renji and Rukia in the Seireitei, and he was studying at Shin’ō Academy, and he was a student of the same class.
He is a top student of the Shin’ō Academy, and he is vying for strength by various teams. In the end, he has entered the first team of secret mobile maneuvers.
He will use punishment to kill every person who tries to threaten the martyrdom and protect his loved one.

- Description from Novelupdates

On the surface, Zhou Qingfeng is an international student from Baitan High School, and now he is staying at Julia's home. In fact, he is reborn.With the memory of more than ten years later, in order to avoid the disasters that will be faced in the next ten years, Zhou Qingfeng, in addition to being a young and frivolous international student, secretly investigates a biopharmaceutical company called “Apocalypse”.The gears of fate begin to turn...

800 years ago, 3000 dimensional gates opened across the entire world. In that moment, it was as if 3000 different colored eyes opened across the world as hordes of monsters swarmed out of these gates like tears.

Some could destroy city walls with one strike; They had bodies the size of a giant and fed on humans

Some latched onto humans, absorbing their bodies’ nutrients and enslaving humans

Some infiltrated the humans’ cities, disguising themselves as normal human beings while feeding upon human blood to sustain themselves.

In a night, the Human race fell to the bottom of the food chain.

The world had turned into a paradise for monsters…

- Description from Novelupdates

When the female support (cannon fodder) slept with the villain, they all had miserable ends.But what about when the female support changes to Xue Xue?The ending naturally becomes different.