|Solo Photobook by Kago Ai|
|Released||August 27, 2009|
|Kago Ai Publication Chronology|
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|Next|| Los Angeles|
Kinyoubi (金曜日; Friday) is Kago Ai's 3rd solo photobook. It was released on August 27, 2009. The photographs were taken by Takeuchi Yasue and the photobook was meant to commemorate the 25th anniversary of FRIDAY magazine.