8月6日は妖夢の日 4月6日は妖夢の日 妖夢の日

Youmu day is a holiday dedicated to Konpaku Youmu from Touhou. It is celebrated on the two dates that form Youmu's name in goroawase: April 6th (よ,む / yo,mu) and August 6th (よう,む / you,mu).

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