I Got Nothing and Still Won!

Spatial nodes come down and open secret realms, abysses and dungeon instances one after another. Monsters and other races spread out across the world, and the only way to stay alive in it is to awaken a class and fight. At the awakening ceremony Su Chen becomes the first person on record to awaken with no class at all, and everyone there says so. He opens a system of his own and tells nobody. He does not train the way other people train, and he grows anyway, on abilities nobody has seen before. Everyone takes him for a write-off. There is something about a body with no class that has not come out yet.