Angelique Collet, a 17-year-old commoner from the Holy Beast Cosmos' main planet, stands 162 cm tall and weighs 44 kg, with brown hair and turquoise eyes. Selected as a candidate to rule a new cosmos, she undergoes a succession examination overseen by former Queen Angelique Limoges and aide Rosalia de Catargena. Her rival Rachel Hart shares the task of populating and developing their respective lands.

To succeed, Angelique collaborates with nine Guardians commanding elemental forces that shape land prosperity and citizen happiness. She also trains under three Instructors: Victor (mind), Sei-Lan (sense), and Timka (dignity). Her choices with these characters determine her growth and the examination's outcome. Gameplay involves balancing diplomacy with Guardians, pursuing Instructor-guided paths, and managing resources. Exchanging gifts and letters builds relationships, leading to endings where she either becomes Queen or pursues romance.

After winning, she reigns as Queen of her cosmos. In *Angelique Trois*, she enters the pocket dimension Arcadia with her Guardians, encounters the enigmatic Elda, and develops Arcadia’s wilderness to free Elda. *Angelique Etoile* depicts her as established Queen, interacting with protagonists across dimensions. During a crisis in *Angelique Tenkū no Requiem*, she confronts the "emperor" to save Angelique Limoges’ imperiled cosmos.

The non-canonical *Sweet Ange* features her younger self competing in Simolny Academy’s Rose Contest, a baking competition. She vies for top pâtissière alongside other protagonists, aided by "Sweet Knights"—reimagined Guardians themed around desserts or beverages.