My Lustful Sister-in-Law.

In a modern city home, a married woman's life tilts off balance when a taboo attraction to her cousin begins, starting at the very moment she is talking to her husband over a video call. When the situation is brought into the open, she does not pull back; instead she slowly gives way to it. Before long her husband, her cousin and her sister-in-law are all caught up in the same tangle of secrets, and no relationship in the household stays simple. This is an adult-oriented family drama built on forbidden attraction and moral conflict, more interested in guilt, temptation and consequences than in tidy answers. It is aimed at viewers who like tense domestic stories where loyalties blur. The series is told in 38 episodes of a vertical short drama.