The M320 Pearl Special Edition was the last M300 pen to be released. The image doesn’t show it, but the material has alternate gloss and matt sections around the barrel. It is the least favourite of the M300 pens I own. It was very much targeted to the female buyer coming in a heart-shaped box.
A medium width nib, no matter what size is never super exciting. This M300 one is no exception.
Kyo No Oto inks are very traditionally Japanese in the range of colours that they offer. This grey-green called hisoku (literally: secret colour) is an ode to the celadon colour of pottery that was popular in classic period Japan. This ink shades pretty well and the tone is so different from many of my other inks. Do I like it? - maybe, the jury is still out.