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。

两个不同的单亲家庭，大女孩，从小读书，1样学校，后来也到了同一个工作场所做同事，两个人外表和性格，天德德，相斗12年不累。一日1黑路 到现在为止，她的声音就是她父亲的声音，而且她们两个都是同父异母的姐妹，同父异母的妹妹……

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...