Episode 1
S1E1
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The mother separates from her husband and a divorce occurs between them, so the mother takes one of the twin sisters, and the father takes the other. The two sisters grow up far from each other, and each of them develops a different personality from the other as a result of the separation of the father and mother, so one of them is dominated by feelings of selfishness and greed, while the other sister works hard in her education and tries to achieve her ambitions.