That year, Yin Wen was 10 years old. She had never spoken before, and the first time she called her brother was her brother.
It was also that year that Yin Wen and Yin Zhong's father abandoned them and got on the train alone.
Beside the railway track, the crumpled paper ball was blown by the wind, but no matter how I washed it, it could not erase the ruthless farewell my father carved on it.