Do you know おしるこ(Oshiruko)? This is Japanese traditional sweet bean soup with rice cakes and we eat them in winter. It is made at home and also you can find them some cafes or restaurants. But if you want to eat it easily, it might be a good idea to but it at vending machines. This canned oshiruko has no rice cakes but is reasonable so good to enjoy Japanese traditional taste quickly. When you want to drink something hot and sweet in winter, check vending machines.