Jiang Lianyue is an eighteen-year-old shut-in and self-proclaimed couch potato from the stars. She was born on a planet called Water Blue Star in the Kara Star System. When she was ten, her parents died in an accident, and she was left to fend for herself. She likes staying home, and over time she has become short and fat, a true couch potato. She has no meaningful relationships and lives almost entirely cut off from the world.
Space debris falls into the Kara Star System, causing massive destruction. Water Blue Star and the other planets in the system become post-apocalyptic wastelands. Everything is contaminated by radiation and all kinds of viruses. Animals, plants, humans, and pets all mutate. Spaces known as "xxx instances" appear in many places. By entering these instances, people can obtain items from different planes and grow stronger.
Luckily, she accidentally activates a System. It has no name, only the number 10086. It is still a beginner System with few functions, but it can gain experience and level up by completing missions and clearing instances. From then on, Jiang Lianyue sets out on the road to survival in the post-apocalyptic wasteland. She believes her parents did not simply die in an accident, and that it's time to leave home and uncover the truth.
The Kara Star System is enormous, containing hundreds of thousands of planets and tens of thousands of minor planets…