By putting the weight on the muddiness with regard to the harmony of clarity and muddiness, the darkness that the muddiness has is suppressed. It has a brightness and thickness overall, and we added elegance and warmth to create a calm color. For the light ink stick, it is a strong and refined blue where a slight darkness can be felt within the strong three-dimensionality and brightness. For the thick ink stick, it has thickness, and it is a blue with a strong shade of blue and absorbability. It can be used for hanging scrolls in kanji, small number of characters, kana, and ink stick paintings. Thick to extra light ink sticks can be used. As it gets older, we believe the ink stick calms in color, and its three-dimensionality, sharpness, personality, and features grow stronger. Manufactured in 1992