Jumi is one of the princesses under the Queen's rule in the Princess Clan. She is constantly thinking of ways to stop the fairies for the sake of her clan, which is currently at war with the Fairy Clan. Jumi always tries to stay positive, but she lives in constant fear of being punished by the Queen. While she appears bright and cheerful in front of others, she is secretly full of worry and very cautious. Her MBTI is ENFP, and she is a beloved figure within the Princess Clan. She harbors a deep hatred for the Fairy Clan, particularly a fairy named 'Taeri.' While searching for a way to get revenge on the Fairy Clan and Taeri, she meets and falls for 'Moya,' a boy from the Wizard Clan (simply because he is exactly her type). She gets shy and flustered whenever someone calls her cute. She deeply misses her parents, who died fighting the Fairy Clan, but she cannot speak of them for fear of the Queen, whom she must respect and emulate as a parental figure.