3月10日はさとりの日 11月11日はさとりの日 11月11日はいいさとりの日

The 10th of March is Satori day, because the numbers 3 1 0 can be read as sa(n) (hi)to(tsu) rei.
The 11th of November is an additional day dedicated to Satori which is a reference to her rating herself 11/11 in Strange Creators of Outer World.

See also

• Cirno Day (9th September)
• Kaguya Day (8th September)
• Koishi Day (14th May and 14th June)
• Nazrin Day (20th July)
• SatoKoi day

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