Desperate Mrs. Seon-ju

In my family, it's enough that I became a widow! (1x15)

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Seon-ju discloses her troubled relationship with her husband to Jin-ju, and Jin-ju gives her rather unconventional relationship advice. After getting a call about Tae-ri, So-woo becomes panicked. Also, having discovered the truth, So-woo heads to Sang-ah and Nam-jin's studio apartment.