Mei Chan

Mei Chan is Ling Yao's half-sibling. Though she is also a child of the Xingese emperor, she is from a poor clan and fears for her clan's survival. She is in search of the secret of immortality, which she plans to give to the emperor. The first Amestrian town she sees is the Youswell Coal Mines. It is in the mine town where she hears of Edward Elric, falls in love with the idea of the Fullmetal Alchemist, and vows to meet him. She does not realize that he is short and not the prince-type she imagined until she meets him in Father's domain underneath Central.

Mei has a pet named Xiao-Mei. Xiao-Mei is a runt of a panda. It likes to bite people it doesn't like. The only person it couldn't manage to hurt was Alphonse Elric, who it followed around when it was separated from Mei Chan. Due to Al's "panda-napping", Mei initially held a grudge against Al. However, Mei develops a crush on Al and promises to help him get his real body back.

Mei is also a comrade/friend of Scar's. Scar has been helping Mei discover the secrets to immortality so her clan doesn't end up like the Ishvalans.

Mei and Ran Fan do not get along. From the hostility Ran Fan shows to Mei, it can be inferred that Ling and Mei, despite Mei's social status, are rivals for becoming emperor, though Mei has not expressed any desire to become emperor.