Champe, a 14-year-old girl from Marlseillu, celebrates her birthday on October 3rd and has blood type A. She belongs to the idol unit Sugar Pockets at Flora Girls' Academy and participates in the Cabaret Club. Raised in the countryside, she maintains a city girl facade while nurturing hobbies like hiking and outdoor activities. Frequent homesickness and a dislike of loneliness plague her after relocating to the city.

She cultivates a deliberately cute persona, dubbing herself "Every Student's Little Sister" after topping the school's Most Little Sisterlike Student Ranking. Respectful and sociable, she interacts widely across the academy. In Cabaret Club, she comforts tired women by serving sweets and tea, earning multiple No. 1 Hostess nominations while utilizing skills like "Customer Increase" and "Info Gather❤".

Typically upbeat and cheerful, Champe occasionally reveals vulnerability. During Ceaster Festival preparations and battles against magical monsters, her composure cracks, requiring reassurance from unit mate Ratura. She demonstrates fierce loyalty, such as braving a haunted house without hesitation to find her missing roommate Maryberry.

Champe shares an intensely close bond with Maryberry. As roommates, they share a bed nightly, and Champe actively encourages Maryberry to emerge from her shell. Her appearance features pink hair styled in two ponytails, and she wears her academy uniform with white socks and black Mary Jane shoes.