In terms of its composition, the dispersion of carbon particles of the raw pine ink stick is slightly suppressed, and we added a three-dimensionality (separation of the core and bleeding) within a clear and bright feeling. We also added warmth (redness), strength, and elegance. In terms of color, for the light ink stick, it is an elegant, beautiful, and clear color with a red purple-type warmth unique to raw pine ink sticks. For the thick ink stick, it has a sharp strength and depth, and it is a refined black with warmth. It can be used for kanji and kana in thick, medium, or light ink sticks. As it gets older, we believe the ink stick calms in color, and its three-dimensionality, sharpness, personality, and features grow stronger. Manufactured in 1990