A commemorative day established by the Angfa company, which manufactures products such as eyelash serum. It was set to this day because of the pun with the terms "end of the year" and "education".
The pun:
Eyelash → matsuge → matsu(ge)End of the year → nenmatsu → (nen)matsuEducation → iku (when used as part of a compound) → i(1) ku(9)I put more effort on the eyelashes than I usually doI wonder if I really spent a year without regrets...I'm not sure about thatThe ghost half, who spent the whole year splattering blood all over the placeTwelve more Ohayoumus remaining this year!spurt