In fact, it's a story about the heroine sitting on a small bench, eating peanuts and watching other female supporting characters fight in the palace╮(￣▽￣)╭
The women in this palace are like warblers kept in golden bird cages. They please their masters with their beautiful singing voices and exchange them for a handful of rice millet or a bigger and more gorgeous bird cage.
Even if they are released, they will not fly. They have broken their wings long ago, and have long forgotten the clouds on a clear day, the stars on a clear night, the breeze blowing across their wingtips and the fragrance of roses in the wind. Even though they were singing these songs, they were just songs that others had taught them.