The war with demons is over. For the Ronn Academy of Magic, peace means an exchange of students, the renaming of the department of demon fighters to the department of demonology and a completely new life for magicians accustomed to fighting. And Jen Yarborro, the only daughter of the head of the militant guild, a princess and a very wayward person, becomes a first-year student! Her companions include a poisonous possum and magic daggers, from the first weeks of school she has had many adventures, her dad is furious, the teachers threaten punishment cell... And then there are strange witchcraft flowers donated by the prince of demons.