In Sword Snow Stride ", Lu Jianwen was a death warrior of the Prince of Beiliang. She could not let Yan Ruyu's people go because of her mission and responsibility. The men of sacrifice of the Prince of Beiliang were there to protect Xu Xiao and his family. They had to carry out Xu Xiao's orders and protect the safety of the Prince of Beiliang at all costs. In the novel, Yan Ruyu's people were enemies of the Prince of Beiliang. They tried to assassinate the Prince of Beiliang, Xu Xiao. As a man of sacrifice of the Prince of Beiliang, Lu Jianwen had to carry out Xu Xiao's orders and protect his safety. Therefore, she couldn't let Yan Ruyu's people go. She had to kill them all to ensure the safety of the Prince of Beiliang's residence. Furthermore, as a soldier of sacrifice, Lu Jianwen's mission and responsibility was to protect the safety of the Prince of Beiliang. She had to obey orders and complete the mission at all costs. If she could not let Yan Ruyu's people go, then she would not be able to complete her mission and protect the safety of the Prince of Beiliang. While waiting for the TV series, you can also click on the link below to read the original work of " Little Fox Demon Matchmaker " to understand the plot in advance!