Macaron is a fairy of music who appears in the form of a ram and serves as one of the mascots at Amagi Brilliant Park. He operates his own attraction, Macaron's Music Theater, where he plays the violin for park guests. Despite his refined musical talent, his personal taste in music leans toward rock, punk, metal, and other hard genres, a contrast to his soft, sheep-like appearance.

His personality is marked by a short temper and an artistic temperament. He often takes time off from work when he feels uninspired, a tendency that leads Isuzu Sento to describe him as a true artist. While on the job, he maintains a professional and appropriate demeanor, particularly around children. However, away from work, he is fond of pranks and possesses some perverted inclinations, though he is less childish in this regard than his fellow mascot Tiramy. He also has a verbal tic of adding the syllable "ron" to the end of his sentences.

Macaron has a daughter named Rarapa, who lives with his ex-wife, indicating a family background that influences his responsibilities. Among the park staff, his relationships are shaped by his artistic pride and his sometimes irritable nature, but he remains a functional part of the team. His role in the story is that of a supporting mascot who contributes to the park's musical entertainment, and his artistic drive occasionally conflicts with the practical demands of keeping the park running. His notable ability lies in his musical skill, particularly his violin playing, which he uses as both a performance tool and a personal expression.