Class Change for All: I’m the Ultimate Tank

In what had been an ordinary modern world, a mysterious tide of spiritual energy swept across the globe without warning. Overnight, the world was turned upside down. The potential dormant deep in human genes was awakened by spiritual energy. Everyone gained the chance to change class and acquire unique abilities. Between the city's skyscrapers, mages chanted spells as elemental light blazed; through the streets and alleys, agile thieves darted like ghosts; and school playgrounds were transformed into training grounds where warriors built their strength and practiced with weapons. At the same time, spiritual energy gave rise to all kinds of strange creatures. From ancient forests to bustling cities, danger lurked everywhere. Humanity had no choice but to rely on its newly acquired class abilities to struggle for survival in this new era of the unknown and the dangerous, and uncover the secret behind the spiritual qi revival.