Hunter Academy's Invincible Martial God

Humanity’s once peaceful world was turned upside down when monsters suddenly emerged from a portal in the sky. When all hope was lost, special people with powerful abilities called “attributes” appeared—they called themselves Hunters. To survive, humanity turned to education, creating academies to produce the best Hunters. Though his attribute is low-level, Yusung Shin is determined to rise to the top of Gaon Academy—the best Hunter Academy in the world. Source: Tapas