The SailorShikiori Sound of Rain, bottled ink, and cartridges follow after the Sound of Rain fountain pens, released in November 2020. The inks refer to a certain kind of rainfall, and their names are Japanese onomatopoeic words associated with rain.
Shitoshito refers to a silent and soft rain falling in spring, leaving droplets of water glistening on flowers and young leaves, while Zaza is the sound of rushing water pouring from green leaves with large glossy drops in summer. A fine mist-like drizzle rain in autumn is Harahara, moistening the soil and fallen leaves. And Potsupotsu is an ice-cold rain with freezing drops on branches in winter.
Each of these inks has a strange effect when put on paper. They seem to glisten like a delicate veil. Hardly noticeable, but definitely there. Sounds like fun!