DAIGO is a Japanese stationery brand founded in Osaka in 1944, known for producing thoughtfully designed planners, notebooks, and paper goods that support everyday organization. Drawing on decades of paper making expertise, the brand focuses on clean layouts, durable bindings, and high quality paper that make writing smooth and practical. With collections like the Isshoni series, DAIGO creates simple and functional stationery designed to help people plan, record ideas, and bring clarity to their daily routines.