The Mortal Assassin

The test to become one of the "Clairvoyants" and prevent the apocalypse begins. In less than a decade, the world will meet its predestined end. The only way to break the curse that struck Hwanwoong 90 years ago is to pass the triennial Mugak test and be recognized as one of the "Clear Beings" who will save the world. Jerry, an ordinary high school student living in an unmotivated world with "najeonchikki" as his only reward, is forced to take an unwanted exam by a fortuitous event, and realizes the true value of his heart amidst people struggling to fulfill their destiny... ! (Source: Kakao, translated)