Harry Potter : Reincarnated as The Greatest Wizard - Chapter 55 - Occlumency

Meet Alex Knight, a hardworking young man burdened by crushing debt and a bleak future. When his new boss turns his life into a waking nightmare, Alex finds himself trapped in a job he can't escape, his future held hostage by the whims of a tyrant.Just when he believes he has one anchor left—his girlfriend's love—a devastating betrayal leaves him utterly broken.But then the world changes. The system descends, dragging everyone into a chaotic new reality. Alex becomes the first to sync with it, earning a mysterious title:[Apocalypse Baby][You have awakened the skill: Exploding Touch][Anything you touch turns into a bomb.]Armed with a deadly gift, Alex rises from the ashes of his former life to become an unstoppable force in an urban fantasy world where power rules and vengeance drives him forward.

Long ago a great calamity struck the earth, destroying much of it and merging what remained with pieces of other worlds.

With these worlds came Aether, a new form of energy that can allow one to transcend the bounds of normal mortality and human limitations.

In a world where humans absorb the essence of aether beasts to gain power, Aiden Hawke joins the class of humans known as arcanists, people who defeat aether beasts and absorb their essence into cores they forge within themselves, and who infuse themselves with the aether that permeates the world around them to increase the power of their body and mind.

However, unlike most, Aiden will find that he holds a unique gift and that his journey as an arcanist will not be so simple.

A cultivation story about how a declining sect is restored by a narcissist, a troublemaker, a meanie, an idiot, and a wimpy kid.

- Description from Novelupdates

The whole world is subjected to a highly dangerous standardised exam called the Global Examination. Answering questions by putting their lives at stake, they would live if they passed the test. Every month the exam will undergo reformation while, occasionally, it is random.