He Xia is a significant character in the anime series 'Hitori no Shita: The Outcast.' She is a powerful and mysterious woman, known for her intelligence, cunning, and formidable fighting skills. He Xia plays a pivotal role as both an antagonist and a complex ally, often manipulating events from behind the scenes. Her character is deeply involved in the conflicts between various factions, and her motivations are driven by personal ambition and a desire for power. He Xia's presence greatly influences the story's progression and the protagonist's journey.