After blasting her pregnant daughter with curses, Jang Yoon Jung's mother targeted her son-in-law Do Kyung Wan.�

SEE ALSO: Jang Yoon Jung's mother sends her a letter full of curses at the news of her pregnancy

Her mother uploaded to another fancafe, this time directing a hateful letter to her son-in-law. She wrote,

I first heard about Do Kyung Wan on November 25th, 2012. After she went as a guest to the 'Morning Garden' that Do Kyung Wan MCs for, she told me, 'Mom, he likes me' and that's when I heard Do Kyung Wan's name. After about a month, I couldn't keep looking.

Why? During that time, Jang Yoon Jung was looking around places to live with her fiance and his parents. The baffling thing is that she stopped meeting him because I'm close with him? I couldn't believe it.

Today, I saw that she's 13 weeks pregnant. Why did Yoon Jung decide to hide behind her baby? I never talked about you, Do Kyung Wan. Why? Because I never met you, and I never took you for a son-in-law. Do you also think I'm mentally ill?

I won't say anymore. Do Kyung Wan, you have parents who raised you, too, right? Please ask the parents who raised you greatly to be an announcer. Should I go greet you, even though you're painting mother-in-law as a mentally ill person? What will you do if your baby grows to be like Yoon Jung?

On these letters, Jang Yoon Jung's label told MyDaily, "We have reported Jang Yoon Jung's mother to the police, and we are planning to take legal action.�We read her letters, and we are shocked. Jang Yoon Jung is currently pregnant, so we're taking measures to keep her away from the media. The other side keeps saying lies, so the damage to her image is tremendous. We're�going�to uncover the truth."