Stephania is the last princess of one of the northern worlds of the Ecumene. Her family is killed, and Stefania herself is presumed dead. In an attempt to save her life, she hides in the most guarded educational institution of all inhabited worlds. But are its walls so impregnable? The past is not going to recede, and school brings a surprise in the form of Herman, an intelligent and mysterious student who has become a headache for Stefania from the first days. Or true love, which at first glance seems impossible. Stefania dreams of revenge, and German has to deal with her problems, because he suddenly has his own interest in this matter. ONE-VOLUME!