Volume 0 BOX/Postcard Set 2
Size: 185mm x 130mm x 20mm (the same size as Blue Pilloid book)
A book -sized storage box with 9 new postcards.
The second postcard is a newly drawn by Tsubasa Yamaguchi, focusing on college characters.
The cover has a stroke -shaped window on the paint, and the cover changes depending on what is put inside.
When you put the attached postcard, the eyes of the character will be seen from the window.
The cover is opened and closed by magnet, so you can put it up or carry it as a porch.
It is also recommended to put your favorite Blue Pillio Dogs and postcards from museum shops at museums.
You can also draw a picture by yourself and make it only your own volume.
Production company/Rocky paper