An indispensable cake for the Christmas family. Convenience stores are rapidly increasing their sales. A convenience store that has spread all over Japan with convenience that can be prepared for everything from food to daily necessities. It is now possible to support family events once a year. What does the change reflect? It is a major chain that closely follows convenience stores in Ibaraki and Kasama City, which boasts the largest sales of Christmas cakes in the Kanto region, and approaches the lives of visitors.