She is an elementary school student of Fujigaya Girls' Academy. She plays the title character in the drama festival's adaptation of Antoine de Saint-Exupery's novel "Le Petit Prince".
Akira and Kyouko catch sight of her practising for her performance and are enraptured at the girl's innocent and honest potrayal of her character; the older girls ironically observe that the Prince's dialogue in the play has a deeper meaning to them as teenagers.
She presumably gets stage fright on the day of the drama festival, and is found by her lonesome around the grounds of Fujigaya by Sugimoto Yasuko. Yasuko stops the younger girl from crying and comforts her. Le Petit Prince cheers up and listens with great interest as Yasuko tries to explain the character of Heathcliff from Wuthering Heights who she is slated to portray.
Given confidence by her senior, she heads off and gives a fine performance.