Shen Nian's "Night Ship" bookstore opened in the back street of the old city, and the business was barely there. She's good at two things: restoring old books, and walking away before they're really needed.
Lu Zhen is also good at two things: keeping an eye on all entrances and exits, and making sure that he doesn't leave any traces in anyone's life. The death of his partner five years ago taught him that those who are close to him will not end well.
Late at night, she dragged him into the warehouse, all injured. He woke up and said "Don't call the police", took the change and left. He came back three days later with unfinished troubles and a USB flash drive that had to be hidden. He repaired the bookshelf and exchanged it for storage, while she made an extra cup of coffee and pretended not to care.
Later, someone broke into her shop door, someone threw red paint on her, and the old case from five years ago was chasing them. They were forced to step on each other's wounds, only to discover that the other party had also been leaking.
This is not a story about you pulling me ashore. These were two people who were both in the water and decided to stop pretending they could swim.