Sugaritsuku

Beyond the end of an affair lies even more hell. The mistress thought she had won but was dumped. The wife was hurt when she found out about her husband's affair and went to the mistress's parents' house. The wife's sister gets caught up in the affair, and the two-faced, devious husband is the root of all evil. Is it the wife or the mistress she clings to? The reality of the end of an affair is an extreme horror, a hell!

(Source: Hakusensha, translated)