Aiko is a high school freshman at Daiouyama Prefectural High School and a member of the Fabrication! Astrology Pursuit Club. She initially tried taking down the merged club in order to establish a club of her own, the Fabrication Club, but after failing to take a decent photo of Sae, she gave up and joined them. She is admittedly skilled in photography and data manipulation. Like Michiko, she has poor eyesight and usually wears contact lenses.

Before her plan of establishing a new club, she was a member of the 10th Reporting Club but left because of the club president. She introduced herself as a student of Class 1-K.

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