In a cyberpunk future, old-book restorer Su Zhaozhao guards the Ruins of Return Bookshop, left to her by her grandmother, and fights against the conglomerate's New Civilization Project, which destroys old things. Along the way, she meets Shen Huaijin, a bounty hunter who seems cold on the surface. In truth, he is a key member of the Ruins of Return, an organization dedicated to protecting the legacy of the old world. He is searching for old books that can expose the conglomerate's plot to plunder the resources of the past. From clashing over who owns the old books to working together to protect them, the two uncover the history hidden within their pages and awaken people's memories of the past. And in a neon-lit cyberpunk world, they become each other's light against loneliness, sharing a pure romance in which they heal one another through old things.
