じっ… In recent year-end Sapporo, cold days are -9°C/-5°C, and warm days are about -3℃/5°C. So I put the costume case on the balcony and use it as a refrigerator. I puts bran pickles, natto, miso, sake, ketchup, soy yogurt, etc. When I put it in and out, I use a basket to carry. "Don't they freeze?" I…