The sister-in-law was jealous of her husband's sweetheart because she was going to marry into the prince's palace. In order to replace her sister-in-law with her sister, she sent someone to kill her. My sister-in-law wanted to see her husband before she died, but my husband thought I was jealous. Because my sweetheart didn't want to see her, my sister-in-law died with hatred. When the husband returned home, he discovered that his sister-in-law had passed away. He vowed to find out the murderer of his sister-in-law, and finally killed his sweetheart's sister.
