Doomsday survival game? I'm a big shot by picking up trash

Description

[Natural disasters in the end of the world + picking up garbage + stocking up goods + system]
In order to save her seriously ill grandmother, Song Yu chose to enter a mysterious survival game, including zombie apocalypse, high temperature, ice and snow, heavy rain, rainforest, ocean, desert, desert island,... various world levels. You can get points and real money every time you pass the level.
After passing the levels one after another, Song Yu gradually discovered that the disasters in the game seemed to be beginning to take place in the real world.