Kitsune Biyori byis a fountain pen ink that is part of theYurameku series, which is inspired by theever-changing andexpressive sky. The colour of the ink changes depending on the paper on which you write to reveal unique colours and shades.
The Kitsune Biyoricolour takes inspirationfrom the sky as the weather is changingandcomes in a20mlglass bottle.It is alsoavailable as ainks.