Pirou
"Pillow" written according to Japanese phonetics.
The pun goes as follows: In Japanese, 1 can be said as "hito" or "hi" in the "hifumi" number system, and the handakuon version of "hi" is "pi".
As for the 6, it's "roku", which abbreviated gives you "ro".
So, pi-ro = 1/6.
The 6th of January is
Pillow Day!
Stop saying silly things and just come out already.The weather is so bad, and it's so cold... I'm going to become one with the pillow!!Personified Ghost-Half-chan(♂)Inside
This commemorative day was established by a pillow company because of the way it's said in English!
