Bøker i Lonely Castle in the Mirror (M-serien

Seven junior high students are granted access to a mysterious castle. The only thing connecting the kids is that none of them go to school during the day. Kokoro sees the castle as the only place where she truly belongs, but not everyone feels that way. Ureshino announces one day that he's going back to school, but as summer vacation comes to an end, Ureshino returns with mysterious injuries. As it becomes clear that everyone has their own personal secrets, Ookami-sama announces a new rule that will change everything.

Stronger together. The kids realize that, aside from Rion, they are all students at Yukishina Junior High No. 5. After an eventful Christmas party, Masamune plucks up his courage to suggest that the kids help each other out with their problems and maybe even start attending classes again. They all agree to go to school on January 10th. Will Kokoro finally be able to face her bullies?