2009年9月9日 9月9日 9月9日はチルノの日

Works created to celebrate Cirno on September 9 (⑨ Day).
Often includes a reference to the date somewhere in the image or commentary.

See also

• Kaguya Day (8th September)
• Koishi Day (14th May and 14th June)
• Nazrin Day (20th July)
• Satori Day (10th March)

• Tag group:Holidays and Celebrations

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