Nine thunder struck down, and Cao Gu was born. The old man said that there was a tiger living in his chest. When she was eight years old, a blue-eyed city kid came to her door and told her that she had an ice phoenix on her body. The tiger and the phoenix were mortal enemies, but she said, "Can we be friends?" Cao Gu didn't know that the grudges from three thousand years ago were waiting for them to repay.