Princess Asana is introduced in The Princess Diaries 2: The Royal Engagement.
She is wonderfully portrayed by Raven Symone.
Princess Asana is shown to be kind, funny and beautiful. She is shown to care for Mia, and a close friend of hers. Asana is also seen to be extremely playful as shown at the Royal Princess Slumber Party.
It is unknown when Asana met Mia, but it is shown at Mia's 21st birthday, that she is a dear friend of Mia's. It is also seen that these two are close friends and both care and love each other.