Sailor produces the Kobe line of inks for the Nagasawa Pen Shop. I think that's what it is, most folks just know it as Kobe. Like other Sailor Japan store-exclusive inks these are based on a theme, in this case the city of Kobe, Japan. These inks are somewhat "easy" to obtain being available via the cool-japan store on ebay. Compared to Evening cicada, this ink is bluer, yet still yellow-green, and less muted than the other ink. It's more what you might think of as a yellow-green. It's not bright or retina-searing. A solid color. It shades quite well. On Mohawk via Linen Closeup of same: On Hammermill 28lb Inkjet paper Closeup of same: On Tomoe River, again with ghosting to the next page due to operator error. And these two images seem quite accurate of the actual color. Waterfastness Test Fairly resistant. Some ink loss of course, but still quite readable.