Mashiro Arisaka is a character in the anime series 'Ao no Kanata no Four Rhythm'. She is a sweet and innocent first-year student at Kunahama Institute. Mashiro is known for her petite stature and her adorable, childlike demeanor. She is passionate about Flying Circus, a sport where players fly using anti-gravity shoes. Mashiro becomes a close friend and teammate to the main characters, often providing support and encouragement. Her cheerful personality and determination make her an endearing presence in the series, as she overcomes challenges and grows as a player and person.