Lily Under The Muzzle

Li Xiao Han's brother killed a woman by mistake. Although the woman did not die, he was shot and killed by someone else. The younger brother was accused of murder, and the older sister went everywhere to collect evidence in order to rescue the younger brother. Li Xiao Han met a man and fell in love, but she didn't know that he was the murderer. The murderer confessed the truth out of guilt and then committed suicide.
(Source: Baidu)