Kyukyudo Japanese Paper Notebook (B5) & Inkjet/Copy Paper (A4)

This is a Japanese paper notebook and inkjet paper from Kyukyudo.
The Japanese paper notebook is made of art paper with light brown fiber lumps embedded like polka dots on a light yellow base paper.
The size is B5.

The A4 paper is Kyukyudo's Habutae paper in straw color, with a plain yellow back.
It is compatible with inkjet and copy machines, and can be used with both pen and brush pens.
It originally contained 20 sheets, but one sheet has been used, so there are 19 sheets remaining.