Asuna is troubled and confused after Yuuki suddenly disappeared and didn’t come back, and Siune doesn’t make things better by meeting with her and not answering any questions before quickly logging out herself. She did assure Asuna that it wasn’t because of anything she did…just that this has to be goodbye.
While it would have continued her own dependence and time spent using a device her mother has threatened to take away if it makes her late one more time, Asuna was still excited at the possibility of continuing her friendship with the Sleeping Knights, even after they disbanded. But all the while she thought she was opening a book, they recruited her with the intent of closing a book, at the time and in at way of their choosing.
Thanks to Kirito’s involvement with full-dive tech, he finds out where Asuna may be able to find Yuuki. Again, Kirito plays a small but crucial role, not only being a shoulder to lean into, but the source of the information that could give Asuna the answers she desires so badly. But unlike the previous episodes, where there was a battle to be fought and victory was achieved, those answers show Asuna that Yuuki can’t win the real-world battle she’s fighting.
Now I finally understand why Kirito thought there was something “long-term full divey” about Zekken/Yuuki. Reinforcing the idea that you truly know someone by fighting them, he saw the same tendencies he himself has in VR combat as a result of his two years there fighting for his life. The real Konno Yuuki has been in full dive continuously for three years, because in the real world she’s bedridden in a hospital clean room, suffering from incurable, drug-resistant AIDS.
The reveal of the rail-thin Yuuki surrounded by machinery, as well as the tragic story of how she ended up there, is desperately sad and tough to watch, yet also calls to mind the kind of reveal a mad scientist-type villain would pull to show Asuna he means business. Refreshingly, that isn’t the case here; Dr. Kurahashi is a good man and this is simply the future of medicine, though it’s more than a little strange and frightening to contemporary eyes.
On the other hand, considering Yuuki’s irreversible condition, being able to escape the body that failed her to new virtual worlds is a tremendous gift, and that’s how Yuuki sees it and how she saw her time with Yuuki on the Sleeping Knights’ final mission.
Throughout Kurahashi’s discussion with Asuna, Yuuki is listening, but once she sees Asuna only wants to see and talk to her again, she invites her to dive into ALO to meet her. There, she explains that the Sleeping Knights are all hospice patients (hence the ‘sleeping’) with terminal illnesses. They decided as a group that the next time two of them were told they didn’t have long to live, they’d disband.
Thanks to Asuna, they were able to do so on their terms, and even leave their mark on the memorial wall. They wanted Asuna to forget them to spare her the pain of knowing the sad truth of the Knights, but Asuna isn’t that kind of person, and Yuuki knows that now.
It was great enough that SAO finally got around to using my favorite character, and give her something important and exciting to do. It’s even better that they gave Asuna something she couldn’t do, no matter how strong she became: save Yuuki’s life. It also puts into perspective just how trivial her own problems with her mother and her life direction really are. After all, she has a life ahead of her, period. That alone makes her blessed.
But while Asuna can’t save Yuuki’s life, she asks her what else she wants to do before it ends. When Yuuki says she simply would like to go to school, suddenly Asuna has something she can do for her, for the same reason she was able to find and speak with Yuuki at all this week. Kirito. His research on trying to give Yui a real-world experience could be used to let Yuuki experience school.