Zuzu Boyle, known as Yuzu Hiragi or Yuzu Hiiragi (柊 柚子 Hīragi Yuzu) in the Japanese version, is one of the main characters and a childhood friend of Yuya Sakaki. She gives powerful pep talks. Her father owns You Show Duel School, the Duel school that she and Yuya attend, where they spend their time honing their Dueling skills. She functions as the straight man in comedy acts with Yuya.
Like Yuya, she also has dimensional counterparts: Celina (Fusion Dimension), Rin (Synchro Dimension), and Lulu Obsidian (Xyz Dimension). According to Leo Akaba, Zuzu and her dimensional counterparts are crucial to his plans.
Zuzu has blue eyes and dark pink midback-length hair, which she wears tied up in pigtails, clipped down by blue, spherical hair clips. Her hair also features two lighter pink bangs that fall to the side of her face. Zuzu’s outfit consists of a sleeveless light-blue and white shirt with a green musical note on the right collar, along with a red tie, which she wears with a dark red skirt and dark stockings.
Her skirt was lengthened in the dub to cover the bare skin showing on her legs but starting from the Arc League Championship Arc, her stockings are lengthened instead. She notably is not shown wearing the school jacket from Paradise Prep School that other female students wear. She also wears a bracelet with strange abilities. These powers seem to be connected to Yuya and his counterparts, activating whenever Zuzu, Yuya and any of his counterparts are in close proximity.
Zuzu Boyle later switches clothes with Celina, but she retains her bracelet, her spherical hair clips and her Duel Disk. Later, she starts wearing some of Rin’s clothes, the first outfit was a pink top and yellow shorts.
Zuzu has a jovial and upbeat personality coupled with an extremely short temper, the latter often resulting in her actions causing huge consequences. She also has a tendency to hit people in the head with a paper fan, primarily Yuya and her own father, whenever they do something foolish. She is also shown to be quite argumentative, wanting to argue with a spectator who insulted Yuya and his father before his Duel with the Sledgehammer, showing that she can be just as defensive and caring of Yuya and his belief in his father.
Her perception and judgment begin to falter after her successive encounters with Yuto, due to Yuto’s resemblance with Yuya, and her lack of knowledge of the subject frustrates her.
Zuzu Boyle’s kind, gentle, truthful personality with a strong sense of justice has made her the person people from all four Dimensions adore and the one with the strongest bonds with with non-Standard residents.
Zuzu is quite athletic and acrobatic. In her debut, she was able to smash the Solid Vision technology to the point where it malfunctioned with one punch. When Zuzu refused to go with Yuri, she performed several backflips in quick succession and landed with ease. She was later quoted as having evaded Yuri throughout the entire night, a feat that he regarded as amazing.
Zuzu uses a “Melodious” Deck, focusing on swarming tactics through cards such as “Sonata the Melodious Diva” and “1st Movement Solo”, giving her early access to her ace, “Mozarta the Melodious Maestra”. After her loss to Julia Krystal, she decided to learn how to Fusion Summon, and began practicing incorporating that strategy into her Deck, using cards such as “Soprano the Melodious Songstress”, “De-Fusion” and “Fusion Cycle”.
She also included cards to work with her new ace, “Bloom Diva the Melodious Choir” such as “Pianissimo” and “Slow Tempo”. She is also shown to utilize a large amount of Fairy and LIGHT support cards as well as multiple copies of her “Melodious” monsters, shown when she dropped her Deck
VOICE ACTOR (ENGLISH): Emily Jenness
VOICE ACTOR (Japanese): Yuna Inamura