Mion is a popular model and is headstrong. She doesn't stop at saying her thoughts out loud and can be stubborn sometimes but has warmed up to Aira and Rizumu, accepting them as her friends. She is actually very shy, especially around Aira, Rizumu and Wataru. Her father Pietro is an Italian-Japanese. She was born in Buenos Aires, Argentina on March 3, 1997. At an early age she had been with her parents and wandered the world, and is currently home to live alone away from home in Japan.