Why is it difficult for second-and third-line female stars to get ahead?

Because the second-and third-tier female stars are not popular at first, there are few fans who like her, and she doesn't have the commercial value of the first-and second-tier stars, so it is difficult for her to make a breakthrough in herself, just like our own promotion. Without that strength, it is difficult to be promoted, and that strength requires not only our own efforts, but also many uncontrollable factors.