Becoming the Attendant of the Alien Demon King in the End of the World

High-dimensional aliens dropped a virus overnight, causing most organisms on the earth to become infected and mutated, and the world ushered in a new era. When Xiao Yao woke up, he found that the city was destroyed and civilization withered. On the way to survive, she encountered a handsome and talkative male mermaid, a lovely mutant giant eagle, a charming tiger-thorn plum dancer, a sinister snake man, and evolved zombies that can be seen everywhere... Even, "This cold boss, which planet are you from?" She was forced to go with this unknown boss and start the survival mode of fighting monsters and upgrading.