Sion Jujo is a major character from the anime series 'Otome wa Boku ni Koishiteru'. Known for her calm and collected demeanor, Sion is the student council president at the Seio Academy. She is highly intelligent and often provides guidance to the main protagonist, Mizuho Miyanokouji. Despite her composed exterior, Sion has a mysterious aura that intrigues many. Her role in the series revolves around maintaining order and providing insight into various situations, making her a pivotal support character in the storyline.