The girl is a character of CHINA RAILWAY GIRL - CHAPTER CS. Her name is Yin Lianxue.
Wiki about her: https://zh.moegirl.org/%E5%B0%B9%E6%80%9C%E9%9B%AA# (Chinese Language)
https://zh.moegirl.org/%E5%A4%A9%E6%9C%9D%E9%93%81%E9%81%93%E5%B0%91%E5%A5%B3:%E5%8D%97%E8%BD%A6%E7%AF%87 (Chinese Language)
https://zh.moegirl.org/%E5%A4%A9%E6%9C%9D%E9%93%81%E9%81%93%E5%B0%91%E5%A5%B3:%E5%8D%97%E8%BD%A6%E7%AF%87#/media/File:Nanchefengmian.jpg
Wiki about her: https://zh.moegirl.org/%E5%B0%B9%E6%80%9C%E9%9B%AA# (Chinese Language)
https://zh.moegirl.org/%E5%A4%A9%E6%9C%9D%E9%93%81%E9%81%93%E5%B0%91%E5%A5%B3:%E5%8D%97%E8%BD%A6%E7%AF%87 (Chinese Language)
https://zh.moegirl.org/%E5%A4%A9%E6%9C%9D%E9%93%81%E9%81%93%E5%B0%91%E5%A5%B3:%E5%8D%97%E8%BD%A6%E7%AF%87#/media/File:Nanchefengmian.jpg