Sunday Co., Ltd. engages in the operation of home center chain stores. It provides do-it-yourself (DIY) products such as wood, builder's hardware, tools, paint, and exterior materials; house wares like daily necessities, interior, electrical products, and household goods; car and leisure goods that includes gardening materials, pet supplies, and car supplies. It also offers construction services. The company was founded by Shohei Yoshida in May 1975 and is headquartered in Hachinohe, Japan.