Secret Mother
I Never Imagined I’d Be Looking For My Sister With You (1x27)
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Yoon Jin gets a call from a woman who claims to be Hyeon Joo, asking for her help. Eun Young, who is sitting right next to her, grabs the phone and calls out her sister’s name, but the only thing the woman says before hanging up is that she does not know where she is. Yoon Jin asks Jeong Wan for help, and the two women join hands in locating Hyeon Joo.