With King Oberon taking Chise into the Fairy realm for recovery, Silke becomes agitated waiting at home. Chise slowly recovers under Dr. Shanon's care, a fairy that was raised as a human.

Elias earns the help of many, and they form a search party for Chise. Meanwhile, Chise and Cartaphilus relive his past together.

While watching over Lucy, Chise discovers her connection to Seth and their family's tragic history. While a professor seems to have been the victim of a user of a banned book, a mysterious killer seems to resurface...

Apparently, a forbidden magic book called "The Testament of Carnamagos" is being used to rob Lucy and Simeon of their magical powers. But who exactly is behind it is still unclear. Elias takes care of the matter because he fears that otherwise Chise will put herself in danger for her friend and because he himself wants to protect a friend.

It's time for family explanations, whether between Lucy and her brother, or Alice and Renfred. The College is also going through a complicated period where other magicians seem to want to harm new students.

Outside the College, the witches hunt for the missing book. Inside, the students try to juggle lessons with their own personal goals and relationships. Philomela confides in Alcyone, but an ominous message reminds her of her assignment.

The mystery deepens as all the students drained of magic suddenly wake up feeling fine. Rumors about the culprit start to rise among the student body. Veronica checks in on Philomela.

Philomela bargains for Liza to undo the seal over the College so she can return home to fulfill her duty. As Chise gives chase, her power gives her a terrifying new form.

While Zoe fights off the werewolf, the other students finally reach Philomela. Chise takes a dive into her dark memories, but as everyone's secrets begin to unravel, Philomela hesitates to take her classmates' outstretched hands.

The fight begins in earnest as Lizbeth starts to gain the upper hand, but Chise and company receive some unexpected assistance.

Philomela stands against Lizbeth in a final battle of wills.