By taking the harmony of the clarity and muddiness, the clarity is its elegance and muddiness its thickness. By giving it three dimensionality, it is finished as a calm and refined color where there is a darkness within a strong shade of blue overall. For the light ink stick, there is moderate three-dimensionality and thickness. There is a slight darkness within the brightness, and it is a calm and refined blue with a strong shade of blue. For the thick ink stick, there a thickness, strength, and depth in the color. It is a refined blue-type black with a shade of blue and absorbability. It can be used for hanging scrolls in kanji, small number of characters, and kana. 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 1995