By putting the weight on the clarity with regard to clarity and muddiness overall, we added a three-dimensionality (separation of the core and bleeding) to a clear and bright feeling. We created a calm color. For the light ink stick, it is a refined red purple-type black with warmth where a slight blue can be felt. For the thick ink stick, it is an elegant black with sharpness and depth where a blue with absorbability can be felt. It can be used for hanging scrolls in kanji, kana, and ink stick paintings. Thick, medium, and 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