Mulan is a girl, the only child of his honored family. The problem is that he's transgender, and thinks of himself as a man, or Jimin, but no one in his family supports him and thinks of them as a girl, just like the gender he was born as. When the Huns invade China, one man from every family is called to arms. Jimin's father, who has an old wound and cannot walk properly, decides to fight for his country and the honor of his family though it's clear that he won't survive an enemy encounter.