A good third of the story is dedicated to a rather boring mystery about a classmate of Xiao Nianyuan who's using her photo to scam people online in order to ruin her reputation and take revenge on her over a perceived slight about his scolarship, but it feels pretty disconnected from the main point of the story, Xiao Nianyuan never actually exchange a single sentence with the perpetrator, outside of once, when he's about to get caught.

The mystery of the sky city take another large chunk of the story, but in my opinion, it really wasn't all that interesting. Xiao Nianyuan caught a glimpse of a silhouette that she recognized in the sky city early on, and then obsessed over the sky city to try to find that person and find out what's the sky city is. While the story doesn't explicitly said it, the person is most likely Ji Rongxue, who Xiao Nianyuan thought was dead. But the mystery is revealed in a rather boring fashion and so is the true nature of the sky city.

I also have a slight gripe with the ending, I do think that Xiao Nianyuan and Liu Qiushu relationship benefited a lot from the dynamic of one of them being a real person and the other being an NPC who was stuck in a virtual world, and while I always expected this barrier to eventually fade for an happy ending, I do have a slight problem with how it happened. Firstly, it's a personnal preference but I would have prefered if they had started their relationship in the game, while Liu Qiushu was still an NPC, and secondly, the story kind of brush off all too quickly how Liu Qiushu was actually a real person with her memory sealed inside of the game, so it almost feels like Xiao Nianyuan end up with a different Liu Qiushu than the Liu Qiushu we got to see for the entire story (since their meeting happen in the last chapter).

Also, there is some hints of a relationship between Ji Rongxue and Jing Siyan (another NPC), but it's never explicited, Jing Siyan get deleted due to a virus and there's no resolution on that front, which is pretty sad.