Blueberry is a NH-29 sprite created by the YSS Sakura and serving on the YSS Eucharis as a nurse and technician (specializing in sensors). Blueberry has blue hair, violet eyes, and whitish skin that turns pink when she's embarrassed or emotional. Her personality is somewhat gloomy, but she likes “to make things beautiful,” including herself. Despite having natural attractiveness as a Nekovalkyrja, Blueberry loves cosmetics and almost always wears eyeshadow and makeup, and tends to do her hair fancily. She is a big fan of art and architecture.
Blueberry was close friends with another former YSS Sakura sprite, Sunflower.