Louis Anjō (庵條 瑠衣), an 18-year-old third-year at Hoshinomori Magical Arts High School, was born August 15 under Leo. He stands 183 cm tall, weighs 62 kg, and possesses shoulder-length blonde wavy hair, green eyes, and blood type B. His signature look includes the school uniform with a violet shirt, burgundy jacket rolled at the sleeves, silver boots, and a bracelet, often accented by white feathers on his right shoulder.

Flirtatious and indiscriminately kind, Louis acts as a mood-maker who lightens atmospheres through frivolous jokes and carefree charm, though flickers of underlying anguish occasionally surface. He avoids seriousness but captivates audiences with exceptional dancing skills, his magical art manifesting as white feather-like sparkles.

An early passion for dance, sparked by attending a performance with his mother, curdled when she pressured him excessively before abandoning the family. This led him to enroll at Hoshinomori Academy to escape dance. Initially, he ignored school commitments, preferring basketball with Kanato Hibiki or casual flirting. His trajectory shifted during Summer Festival preparations in episode 4 when Kohana Aigasaki reignited his passion. Teaching her dance movements and witnessing her earnestness, he rediscovered his joy in the art. By episode 13, he acknowledged Kohana as irreplaceable for helping him love dance again.

Louis mentors Kohana, frequently flirts with her, and develops feelings. He shares a relaxed rapport with Kanato Hibiki despite their age gap, often bonding over basketball. He nicknames Teika Ichijōji "Jōji" for finding his surname cumbersome and views him as overly rigid.