Mei Xiao is a young alchemist and princess from Xing, introduced in the anime series 'Hagane no Renkinjutsushi' (Fullmetal Alchemist). Gifted and determined, she travels to Amestris with her loyal pet, Xiao Mei, seeking the secrets of immortality to save her clan. Mei is skilled in alkahestry, a unique form of eastern alchemy, and her intelligence, compassion, and resourcefulness make her an important ally to the main characters. She plays a crucial role in the series’ exploration of alchemy and international relations.