The heroine of a time-travel novel is called an unintentional killer. What is the full name of this novel?

Did the hostess put it on the clothes of Chen Luoyi, the princess of national subjugation? That man turned out to be a proton of Chen Luoyi, and then he made her sell Chen Luoyi's first night clothes in a brothel to get back at him, and then he committed suicide, and then he accidentally wore them, and then he accidentally became the man's killer, didn't he?