Kyung-ah works as a caregiver and lives alone. The only one she can rely on is her daughter, Yeonsu, but it's hard to see her after her independence. Meanwhile, Yeonsu, who was suffering from his ex-boyfriend, argues with him again and heads home. After Yeonsu left, Kyung-ah receives a shocking message.
경아의 딸
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친구의 전화
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엄마의 과거
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PC방
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엄마와 딸
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횡단보도
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