We met on a snowy evening in the third grade of elementary school. We were waiting for the person to pick us up from school. He was so hungry that he wanted to exchange his scarf for two and a half steamed buns from me.
It's been more than twenty years and I don't remember much.
He later left alone and was never heard from again.
Finally I couldn't wear his scarf anymore, so I threw it away. I thought, Lin Xu, you may have forgotten it.