Mutsumi started dancing, aged 7, at the Narumi Ballet Studio in Saitama, Japan. In 2009 she moved to Europe to continue her training at the Royal Ballet School of Antwerp, before graduating from the Hungarian Dance Academy in 2012. That same year, Mutsumi joined the Croatian National Theatre as a member of the Ballet Ensemble, and has since gone on to perform a variety of classical, neo-classical, and contemporary roles by renowned choreographers such as Derek Deane, Ohad Naharin, and Wayne McGreggor. She was promoted to Demi-Soloist in 2022, and became First Soloist in 2024.

During her time at the CNT, Mutsumi has worked closely with choreographers in the creation of, and re-staging of well-known ballets. Highlights from her repertoire include: Moyna in the ballet Giselle (ch. Jose Martinez), Pas de Action in La Bayadere (ch. Vasily Medvedev), Eutibide in Spartacus (ch. Jiri Bubenicek), Kitty Bennet in Pride and Prejudice (ch. Leo Mujić), Dyad 1929 (ch. Wayne McGreggor), Big Swans – Polish Princess – Russian Princess in Swan Lake (ch. Vladimir Malakhov), Horatio in the ballet Hamlet (ch. Leo Mujić), and many others. She has performed in numerous international tours and galas, most recently appearing in the prestigious “Roberto Bolle and Friends” performances at Arcimboldi Theatre in Milan, Italy.

Mutsumi has competed in numerous dance competitions, and her accolades include 1st place in the Junior category of Yokohama Ballet Competition (2008), Finalist of the All Japan Ballet Competition (2009), and Semi-Finalist of the Prix de Lausanne (2009). In 2016, she was awarded a special commendation for “Best Couple” at the Slavenska International Ballet Competition, whilst dancing with her husband, Adam.