Infinite Upgrades Starting from the Weird Apocalypse

Ye Xiu traveled to a strange apocalypse. In this world, strange places will grow out of thin air. Human beings fled to the sky to avoid disaster, and only occasionally came to the ground to collect resources. And Ye Xiu gained a system: the more dangerous the place you survive, the more experience you gain; the stronger monsters you kill, the stronger professions you can awaken. Since then, it has been out of control - from a survivor to a shadow warrior, from a swordsman to a swordsman, from a killer to a doomsday gun god... Awaken your profession along the way and reach the maximum level. Until the ultimate darkness falls, there is no more light in the world. Everyone in the world is afraid of the terrifying monsters in the darkness, but there is only one person who dances in the darkness, killing monsters at every step, leaving no trace behind for thousands of miles.