TV-Series
Description
Ayu, known in the Japanese version as Ayu Ayukawa, is a student at the You Show Duel School. She is a young girl with fair skin, golden eyes, and red hair, which she often accents with a large, multicolored headband. Her typical outfit consists of a short cream t-shirt over a long-sleeved pink and red striped shirt, paired with a red skirt, long black tights, and brown shoes, complemented by a blue bracelet on her wrist.

Ayu has a warm, sweet, and caring personality. She is a loyal and enthusiastic friend who acts as one of the biggest supporters of her fellow duelists. She admires her classmate Zuzu Boyle immensely, looking up to her as an older sister figure and aspiring to become a great duelist like her. True to the philosophy of her duel school, Ayu also believes in the importance of entertaining the audience through her duels.

Within the story, Ayu serves as a recurring supporting character, primarily representing the younger student body of the You Show Duel School. Her motivations are centered on supporting her friends and improving her own skills as a duelist. She is often seen alongside her fellow students, Frederick and Tate, forming a close-knit trio of Yuya Sakaki's most steadfast supporters. She participates in the Arc League Championship, the tournament arc of the series, where she competes in the Youth Class. Her most notable duel during this event is against Riley Akaba, a prodigy from the Leo Institute of Dueling. Despite starting the match with confidence and a strong strategy, she is ultimately defeated when Riley uses a Fusion Summoning strategy to overcome her monsters.

Throughout the series, Ayu remains a grounding presence at the You Show Duel School. She reacts with disbelief and fear when the conflict with the Fusion Dimension becomes apparent, and she is later seen witnessing the cataclysmic events involving the Supreme King Dragon, expressing confusion and shock as she struggles to reconcile the destruction with the entertainment dueling she loves. Her key relationships are with her fellow students at You Show, particularly her sisterly bond with Zuzu, and her friendly rivalry and camaraderie with Frederick and Tate.

In terms of dueling abilities, Ayu uses an Aquaactress deck. Her strategy focuses on quickly swarming the playing field with her low-attack water monsters. She then uses a series of Continuous Spell Cards, known as Aquarium cards, to protect her monsters from destruction and significantly boost their attack points, making them formidable despite their small stature. This strategy is best demonstrated in her duel against Riley, where she uses cards like Aquarium Stage, Aquarium Set, and Aquarium Lighting to power up her Aquaactresses, such as Guppy and Tetra, before eventually summoning her stronger monster, Aquaactress Arowana.