The opening episode of "Dainanaoji" introduces us to a world where magic and nobility are deeply intertwined, shaping the fate of the people within it. The episode begins with a group of noble students and their disdainful remarks about a commoner, emphasizing the importance of lineage and talent in magic, as taught by William Bordeaux, the father of magic. This establishes a precedent for the social structures and beliefs surrounding magic.

The narrative then shifts to the protagonist, Pre-Lloyd, who gazes in awe at the noble's magic despite the pain it inflicts upon him, revealing his deep yearning to master magic himself. Suddenly, Lloyd is reborn as the seventh prince of the Kingdom of Saloum, announced by a newspaper boy celebrating the birth of Prince Lloyd. For Lloyd, a new life full of possibilities begins, offering him the chance to pursue his passion for magic.

As Lloyd adjusts to his royal life, he remains reserved, expressing disinterest in the throne and focusing solely on the study and mastery of magic. His interactions with the castle's inhabitants, including servants and nobles, hint at his extraordinary intelligence and magical aptitude even as a child. Notably, Lloyd's ability to speak shortly after birth and his fondness for spellbooks mark him as an exceptional individual, leading some to speculate about a possible connection to William Bordeaux.

Lloyd's dedication to his magical studies becomes even more apparent through his interactions with Sylpha, his swordsmanship instructor. Despite her efforts to teach him the art of swordplay, Lloyd's primary interest lies in magic, prompting him to use spells to gain an advantage during their training sessions. His clever use of magic to alter his physical abilities and adapt to Sylpha's movements showcases his ingenuity and determination to pursue his magical interests.

The episode also unveils the secret of the forbidden library, where a demon named Grimoire is trapped within a book. Lloyd's curiosity and resolve lead him to break the library's seal and confront Grimoire, offering a glimpse into his fearless nature and his deep-seated desire to expand his magical knowledge. Their encounter reveals Lloyd's extraordinary magical abilities and his capacity to resist and analyze Grimoire's powerful magic, paving the way for an unusual partnership between a prince and a demon.