Aoyama began her training in classical ballet at the age of 3. She admitted to Asami Maki Students and Japan Junior Ballet, and later entered Akiko Tachibana Ballet School. During the period she appeared in the productions of AMBT such as Don Quixote (Cupid) and Nutcracker (Clara).She has also appeared in the productions of Royal Scottish Ballet (1992), Bolshoy Ballet (1993), and Hamburg Ballet (1994) for their tours in Japan. She went abroad in order to study further in UK (Royal Ballet School), then in Germany (Ballettzentrum-John Neumeier). She joined AMBT after completing her studying abroad in 2001. Her repertoire includes Odette/Odile(Swan Lake), Princess Florine (The Sleeping Beauty), Pas de trios and Four small swans (Swan Lake), Constance(The Three Musketeers), Snow Queen, Columbine, a Chinese Dancer and a Mazipan Girl (Nutcracker), Kitri's Friend (Don Quixote), as well as Birthday Offering, Notre Dame de Paris and Pink Floyd Ballet.