Olivie governs the sacrea of beauty, love, pleasure, and freedom as the Guardian of Dreams. Hailing from a cold planet, his family includes his father, mother, two older brothers, one younger brother, and one younger sister. He possesses passion blond hair, dark blue eyes, stands 180 cm (5 feet 11 inches) tall, weighs 63 kg (138 pounds 14 ounces), and bears a small birthmark or mole.

Identified by the Holy Land's messenger at eighteen, he formally ascended to Guardian status at twenty. From the Holy Land, where time flows differently, he maintains universal balance, a duty that often means returning to his homeworld decades later to find his original family gone. Personality-wise, Olivie presents a cheerful and openhearted demeanor. His flamboyant interests in makeup, nail art, hair extensions, and aroma therapy contrast with a practical, level-headed reliability during crises; he is typically the first to seek concrete information about emerging threats. Among the Guardians, his closest bond is with Luva, considered his best friend, while his relationship with Julious is notably strained, identified as his worst friend.

His preferences lean towards elegant and spicy scents, mango and passionfruit juice, caviar, and tropical fruits, while he dislikes tabasco, salami sausage, and aloe. He seeks a strong-willed "cute" girl as an ideal romantic partner. Olivie appreciates music, both performing and listening, and favors birds of paradise among animals.

Within the Legendary Etoile's mission to save a parallel universe, Olivie participates in critical discussions and strategy sessions alongside fellow Guardians. His interactions feature banter with Oscar, particularly during interviews with potential candidates, though Julious often dismisses these exchanges. Olivie also engages in formal protocols, such as group salutes to the queen.