Since its birth in 1970, the best-selling "Koguma-chan picture book" series has exceeded 10 million copies in total. At first glance, it looks simple, but it is drawn with various commitments such as asymmetric ears, unique black and orange eyes, and vivid colors. Collaboration items with Graniph have appeared from "Shirokuma-chan's Hotokeki", "Goodbye Her Sankaku", "Hirata Her Hirata", and "Tanjobi Her Congratulations". Please enjoy the world of "Koguma-chan picture book" that has been loved for generations.