A long time ago, there was a very magical mirror. It was said that it was a voyeur left by the gods in the world. Whoever finds this mirror will get what he wants. In a deep mountain in Shaanxi, a man and a woman accidentally broke into an ancient underground tomb. They found the mirror inside the coffin of the tomb owner.
The man said: I want unrivaled power.
The woman said: I want to devise the wisdom of the world.
The mirror agreed, but it said: If you think of getting something, you have to pay some price. Are you ready to pay the price?
The man and woman thought seriously, but in the end they still could not resist the temptation brought by strength and wisdom. They agreed, and so the story began.
In fact, this is the story of a tragic man and woman who swap genders and fight in the ancient world of martial arts.