On her way to the east building library to find some reference books, Catarina joins up with the usual gang, and they decide to have a study session together. Then she opens a book that caught her eye... and it suddenly fills the room with light, then swallows her up along with Geordo and the others. Only Mary and Maria are left behind, so they cautiously open the book to try to rescue Catarina and the others trapped inside.

The day after the resolution of Catarina Claes's kidnapping, the first prince, Jeffrey Stuart, passionately speaks of his love for his younger brothers to his fiancée, Susanna Randall. At the same time, Geordo and Alan are in the student council office, reminiscing about their childhood days with their older brothers.

The OVA will tell the childhood stories of the main characters, adapting from the first volume of Satoru Yamaguchi's original light novel.

Bundled with the seventh limited edition volume of the manga.