A paint box owned by early Edo-period priest Shokado Shojo is said to have provided the inspiration for this bento. The high-sided container is divided into four equal compartments. In time, the measurements of the container became fixed, as well as the placement of the rice and other morsels. The lid does not merely serve as a device to keep out dust, but can be turned over to provide a stand for the soup bowl. With its innovative touches, the shokado bento brought new refinement to the etiquette of kaiseki.