This is a set of tableware used in a ceremony to celebrate a baby's growth on the 100th or 120th day after birth, with the wish that the child will never have trouble finding food in their life. For boys, a "Sō-shu" (all vermilion) set is prepared, with both the inside and outside of the dishes being red (vermilion). For girls, a "Kuro-uchi-shu" set is used, with the outside being black and the inside being red (vermilion). After using the set for the Okuizome ceremony (first meal ceremony), it can be used for celebrations such as New Year's, seasonal festivals, and birthdays. In addition to sekihan (red bean rice), grilled sea bream, soup, and simmered dishes, small white stones (such as those from the shrine visited during the Omiyamairi, the first shrine visit) are also prepared separately. The parent or a designated person will use chopsticks to bring the stone to the baby's mouth, pretending to feed the baby, which is said to have the meaning of "tooth-hardening" (a wish for strong teeth).