A poor magician from a past life dies in a duel and is reborn as Lloyd, a member of the royal family. As the seventh prince, he's largely ignored by his family and is free to pursue his passion: magic. With ample time, resources, and his past life's knowledge, Lloyd quickly masters magic, but his focus remains on research and experimentation rather than combat. His unusual approach leads to unexpected consequences, but Lloyd remains unfazed, continuing to pursue his magical studies.