兩個不同單親家庭長大的女孩,從小就讀一樣的學校,長大後也進入同一個職場成為同事,兩人外表與個性天差地別,相鬥十幾年不厭倦。某一天,一個黑道老大突然出現在她們的生活中,聲稱是她們的父親,而兩人居然是同父異母的姐妹……Two girls who grew up in different single-parent families, went to the same school since they were young, and entered the same workplace as colleagues when they grew up. The two have very different appearances and personalities, and they have been fighting for more than ten years without getting tired. One day, a mafia boss suddenly appeared in their lives, claiming to be their father, but the two turned out to be half-sisters.
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