I'm not sure specifically which 'Saving Nora' story you're referring to. It could be a very specific tale from a book, movie, or someone's personal creation. Without more context, it's hard to tell the full story.
Since I don't have the details of 'Saving Nora' novel, it could be that Nora is in a place where she needs to be rescued. It could be in a physical sense, like being trapped in a place. Or it could be in a more metaphorical sense, such as being trapped in a cycle of bad habits or false beliefs, and the novel is about the journey to free her from that.
Another possibility is that in a modern - day setting, Nora is a victim of a natural disaster. Maybe she's stranded on an island after a tsunami or a hurricane. A group of rescue workers or volunteers then try to save her. They have to deal with things like limited supplies, bad weather conditions, and the search for a safe way to get her off the island. This kind of story could show the heroism of ordinary people in extraordinary situations.
We can conclude that there are a total of 40 episodes of " However, there was no specific information on the exact number of episodes Li Susu would have 500 years after her return. Therefore, I don't know in which episode of " Long Moon in the Dark " Li Susu went back 500 years in time.
While waiting for the TV series, you can also click on the link below to read the classic original work of "Dafeng Nightwatchman"!