Come to a new world and know the past, present and future of the protagonist. Qinglin doesn't want to change everyone's ending, he just wants to follow the protagonist of this world and watch the changes here until the end.
Lingzhou was a fairyland-like place three thousand years ago. Here Qinglin learned about the cruelty and hardship of this world. I also saw the dire straits the people here live in.
Slowly, she tried her best.
Purpose: redemption