The way of heaven collapsed, and all souls were in ruins. In the end of the Dharma era, a girl with a mysterious life experience is burdened with the fate of changing her destiny and embarks on a journey to find ancient treasures. She slayed all evil spirits with her three-foot green blade, and shook the sky with her sincere heart. When a saint becomes a prisoner of crime, and when justice is stained with blood, can she stick to her true heart in a troubled world where good and evil intertwine? This is a catastrophe that spans three realms, a heart-stirring tragedy. Under the sky, who controls the ups and downs? Only the one holding the sword can determine the outcome.