KA-KU Fountain pen ink One Drop (of a Blue Night) Sheen Fountain Pen a dark black often associated

a dark black often  associated with calmness and the shadow of nature

a peach in Japanese

a turquoise

light blue with pink sheen

KA-KU Fountain pen ink One Drop (of a Blue Night) Sheen Fountain Pen a dark black often associatedThe stationery company KA KU is a boutique brand based in Osaka Japan. Their name literally meaning ''to write'' expresses their passion and philosophy. KA KU wants to create an experience around writing, taking notes and journaling. Their product line tailors to those who care about these things deeply. With a variety of products ranging from pen cases, pens to fountain pen inks. The KA KU fountain pen inks are available in a variety of colors, from