Yue is a central character in the anime series 'Arifureta Shokugyou de Sekai Saikyou'. She is a vampire princess who was betrayed and sealed in a dungeon for 300 years before being rescued by the protagonist, Hajime Nagumo. Despite her youthful appearance, she is wise and knowledgeable. Yue becomes Hajime's closest companion and love interest. Her magical abilities and regenerative powers are formidable, making her a crucial ally in Hajime's journey to survive and find a way back home. Yue's loyalty and affection for Hajime often guide her actions throughout the series.