In terms of its composition, the dispersion of carbon particles is suppressed as much as possible, and with the harmony of darkness and strength in a plain feeling, we added warmth and elegance using redness and white light to create a graceful blue. In terms of color, within the blueness where redness can be felt, the opaqueness is the thickness and strength. It is a complex blue with warmth. As it gets older, the ink stick calms in color, and the separation of the core and bleeding and sharpness of the color comes out. As the ink stick dries, we believe its personality and features grow stronger.