Rudeus's sisters arrive with an unexpected chaperone. After catching up with an old friend, Rudeus decides it's time to send the girls to school. But convincing Norn and Aisha turns out to be more trouble than he bargained for.

Life is looking up for Rudeus. His sisters are settling in, and he has plenty of time for friends and family... until an announcement from Sylphie and an unexpected letter upend his idyllic school life.