My artifacts are numbers. There are green and pink bibs. They are about the size of the upper body. And they are very light. I don’t feel the weight even if I hold them and the weight of the numbers and the weight of the air are almost the same. YMCA is written in blue and white letters in the center. Below that there is a white frame, and the name is written in hiragana inside. A message is written around them. This is the number that my ski camp friends wrote to me. This reminds me of many memories of the ski camp and my friends, and makes me feel better even when I'm depressed. Ski camp is an event held by YMCA that 6 or 7 university students teach skiing to about 40 junior and senior high school students, and it is held in Nagano prefecture every winter and spring. In addition to skiing, we all spend five days playing cards and ice breaks. Many people meet there for the first time, but we all talk a lot and soon become friends. On the return train on the last day, we wri...