So during the 9th of September thread I heard mention of holidays for other Touhou characters and so I decided I'd do a little searching and couldn't seem to find any. But why should we let that stop us? Create random holidays for Touhou characters. Cite reasons for bonus points.
Reimu: 15th of August , release of Touhou games
Suika: 5th of August, international beer day
Sakuya: First Tuesday of January: Time began on a Tuesday.
Very few people know that.Parsee: 10th of February, because the
Parsee showed up in the 10th century and problems with not including leap years required them to add in a full month later on. Yes, this is a stretch.