Shushu is a youthful lady who boasts short, sunny hair that has a hint of green. She frequently adorns her head with a ribbon that makes her bunny ears stand upright. As a member of the 7th Unit, she frequently wears the Anti-Demon Corps uniform, which consists of a navy blue military tunic without sleeves, long gloves that extend past her elbow, a red belt, shorts, high-heel boots that reach halfway up her shins. Unlike many of her squadmates, Shushu exudes a carefree and jovial demeanor, displaying both cheerfulness and nonchalance almost consistently. Driven by her desire for excitement, she joined the Anti-Demon Corps solely for its stimulating effects. However, she can be easily provoked. Shushu is also quite innocent and inquisitive about everything, often expressing her curiosity by wanting to see a man's naked form.
She hails from an average family and has never known her father. Being the youngest of three sisters, she appears to be the most pampered among them. She attended Bentenjima Girls High School without any contact with males. At some point in her life, she consumed a Mato Fruit and decided to join the Anti-Demon Corps in search of stimulation and to make a living.