Su is the youngest daughter of The Emperor.
Disney History
Mulan II
Su is the youngest and shortest daughter of the Emperor, and orange is her signature color. Her favorite thing to do is gather food from the trees. She likes to spend time with Chien-Po, who also enjoys food like her. When the carriage is damaged and the fruits float in the water, she picks them up and is saved by Chien-Po, too. She is bright, childish, and cheerful.