Naruto: The Life Changer - Chapter 85 -:

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…

He was the cold-blooded prince of the Jin country. Decisive and smart, he had looked down on the world with apathy and disdain.

A human from Earth is thrust into the [Hunter x Hunter] world, becoming the Zoldyck family’s defiant, red-eyed prodigy. They call me a genius and the rightful heir, but I say that’s Killua’s burden to bear.Armed with crimson eyes, and a subtle yet powerful system, I’ll rewrite destiny, upend the world, and embrace the chaos with a wicked grin.

On the brink of destruction, I regained consciousness and found myself back in the past, 20 years ago. In order to have a peaceful retirement, I must prevent the impending doom.