Seravi stands as both guardian and magic instructor to Chacha, renowned as the world's greatest magician. He possesses shoulder-length green hair, gray eyes, and fair skin, typically clad in a white wizard robe and brown flats. As a pre-teen knight during Daimaō's attack on the royal castle, he wore armor while escaping with the infant Chacha, an event where his mentor, Grand King Genius, sacrificed himself to delay the enemy.

His history is marked by a complex rivalry with his childhood friend, Dorothy. Initially drawn to her natural blonde curls, Seravi developed a lasting aversion to her later straight red-pink hair, creating significant tension. He carries a doll named Elizabeth, modeled after Dorothy's childhood look, often employing ventriloquism to converse with it. His potent magic draws strength from his deep feelings for Dorothy, though her changed appearance later evokes fear or discomfort in him.

Previously captain of the royal guards, Seravi participated in Chacha's rescue during the castle assault. He later revealed her true princess heritage and her parents' petrification. Throughout the series, he frequently intervenes in crises using disguises, solving problems like reversing age-altering magic on the main trio and curing Riiya's amnesia through unconventional methods such as striking his head with a mallet.

His magical endeavors achieve near-flawless success, save for a single magician's duel loss to Chacha, caused by distracting visions of Dorothy. Seravi's residence suffers repeated destruction. By the anime's conclusion, he reconciles with Dorothy and becomes engaged to her, resolving their tumultuous relationship.