Also known as: 5月14日はこいしの日, 6月14日は無意識の日, こいしの日, 5月14日はこいしちゃんの日, 5月14日は古明地こいしの日
A day to celebrate Komeiji Koishi from Touhou. The 14th of May is considered Koishi day because the numbers 5-14 can be read as <i>go</i>-<i>i</i>-<i>shi</i> [五一四] (<i>ko</i>-<i>i</i>-<i>shi</i>).
There is also an additional day dedicated to Koishi set to the 14th of June. The numbers 6-1-4 can be read as <i>mu</i>-<i>i</i>-<i>shi</i> which are the prefix for <i>muishiki</i> meaning "unconscious" or "unconsciousness".
See also
- Cirno Day (9th September)
- Kaguya Day (8th September)
- Nazrin Day (20th July)
- Satori Day (10th March)
- Sekibanki Day (6th June)
- SatoKoi Day