Seitousha, founded in Tokyo in 2009 by Sei Yamamoto, is a Japanese stationery and lifestyle brand that blends traditional charm with a modern sensibility. Known for its delicate, hand-drawn designs inspired by nature, embroidery, and everyday life, Seitousha creates washi tapes, letter sets, stamps, and paper goods that add a gentle touch of beauty to daily routines. All products are proudly made in Japan and developed in their studio in Koganei City—a peaceful area surrounded by greenery and seasonal inspiration. True to its name, which means “Starlight Company,” Seitousha aims to offer creations that quietly brighten everyday moments.
