Mitou Shoukan://Blood-Sign - Volume 9, Battle Tutorial

One day, You Huo and his famiIy was puIIed into an exam caIIed the GIobaI University Entrance Examination. Going through exams together with other unfortunate examinees, their Iives are put at stake and they can only Iive by passing each exam. However, something about these exams and the system controIIing it didn’t seem right — lt seemed to be trying to trap the examinees with ridiculous ruIes and strange questions…

[Shelter System successfully bound to host!][Option One: City of Light, save the survivors in the apocalypse and become a glorious and benevolent savior.][Option Two: City of Darkness, humans who enter the City of Darkness can only become your slaves. And you, will be the devil ruling over the apocalypse.]Sorry, I am no saint, I choose City of Darkness! From today onwards, I will be a villain!

After midnight, you’re not allowed to enter the bathroom.

At exactly 2 am, there was a knock on the door.

A woman with disheveled hair and a bony figure always had her back turned to me.

Encountering strange events? Luckily, I can rewind!

This is a story of a reborn individual who navigates a world invaded by strangeness, carefully taking

- Description from Novelupdates

After Xia Feng transmigrated, his heart was mysteriously removed.In its place, a defective demon heart capable of sustaining life only for eighteen years was implanted.This is a magical heart that can sync with the power level of its target.To stay alive, he bound himself to the ultimate villain of the future, a Destructive Witch who was destined to destroy the world.The stronger the Destructive Witch becomes, the stronger he becomes!Thus, Xia Feng realized, it's not my fault for stirring up trouble: “Miss Witch, I admit you're strong, but not strong enough!”