Ellee, also known as Princess Ellee and the Child of Destiny, is a central character whose journey forms a core part of the narrative. She is an infant princess from the kingdom of Sky Land who, after being kidnapped, is brought to the city of Sorashido on Earth. There, she comes under the care of several young women who become her surrogate family and eventually transform into the legendary warriors known as Pretty Cure. Living in this new world, Ellee is typically a happy and cheerful baby, though she also cries loudly when distressed or frustrated. She can be quite particular about her wants and needs, but under the guidance of her caretakers, she gradually begins to show signs of becoming more independent and brave.

The true nature of Ellee is steeped in mystery and destiny. She possesses a remarkable and powerful ability, as she is the one who grants her caretakers the power to transform into Pretty Cures. Her destiny as the Child of Destiny makes her a target for the Undergu Empire, an antagonistic force that seeks to capture her for her immense power. In a moment of desperate need, when her friends are on the verge of defeat, Ellee’s strong desire to protect them triggers a profound transformation. She ages into a teenage form and becomes Cure Majesty, a legendary warrior.

As Cure Majesty, Ellee’s personality shifts. While she can still display a childish and playful side, she becomes noticeably calmer, more mature, courageous, and remarkably powerful. Her fighting style reflects this newfound strength; unlike some of her teammates who rely on ranged attacks, Cure Majesty is a formidable frontline combatant who is not afraid to engage villains directly with physical attacks like powerful punches and kicks. Her presence on the battlefield is striking, and her abilities are a significant asset to the team.

The relationships Ellee forms are the cornerstone of her development. She shares an especially strong bond with Sora Harewataru and Mashiro Nijigaoka, who become her primary caretakers and act as older sisters. Her trust and affection for them are immense, and their belief in her is what helps her unlock her full potential. A notable aspect of her development is her initial inability to transform into Cure Majesty at will after the first time. Despite wanting to protect her friends, she struggles to replicate the transformation, leading to tearful frustration. However, through the encouragement and support of her team, she learns that the key is her own determination and heartfelt wish to protect others. This sincere desire causes her unique transformation item, the Mirage Pen, to materialize, allowing her to freely transform thereafter. Her resolve to protect her loved ones, rather than simply being protected herself, is what truly defines her growth. She is tired of being a passive princess in need of saving and instead wishes to be an active participant in her own story and the defender of her new family.