After Su Yan dies, she is bound to the sharp-tongued System 073 and has to transmigrate through a hundred worlds to complete missions.
The girl and the System are at odds from the start. They bicker and argue every day, each finding the other annoying.
073: "Host, can you stop being softhearted? Point deduction warning!"
Su Yan: "Talk less. You're giving me a headache."
She experiences every facet of human life, breaks free from the shackles of fate, and relies on no one, step by step becoming her own source of support.
Across a hundred worlds, all their joys and sorrows pass like clouds, but this stubborn System, too proud to admit it cares, stays by her side.
When they have finished traveling through all one hundred worlds, neither wants to part. They break free of every rule and remain in the ordinary human world, bickering and squabbling as they spend the rest of their lives together.