Madam Li-Liu was Liu Ya's eldest sister!
The other villagers did not know the truth about Liu Ya's matter, but as a member of the Liu family, Madam Li-Liu naturally heard that Liu Ya did not have an affair with the village's Li Liujiao. It was Guan Chibei and Ye Lulu who had maligned her.
Moreover, Madam Li-Liu even 'knew' that Liu Ya secretly had 'feelings' for Guan Chibei and they were 'mutual.' In the future, she would 'enter the Guan family,' which meant that she was a sister on par with Ye Lulu.
Of course, Madam Li-Liu viewed Ye Lulu with hostility and wanted to avenge the Li family. Apart from venting her anger, she also wanted to strike Ye Lulu's prestige and weaken her influence.
She wanted to let her sister, Liu Ya, enter the Guan family in the future and step on Ye Lulu's head to defeat her!
Apart from the Liu family, no one knew about this.
However, Madam Li-Liu felt that she knew about 'everything.'