While Qingyun was experimenting with Wind Release Chakra Mode, a Haku-haired woman in a small country far from the Land of Fire was having a strange dream.
In her dream, the demon her clan had kept under Seal for generations suddenly broke free. Left with no choice, she could only fulfill her duty and prepare to sacrifice herself to Seal it once more in the Ancestral Hall of the Land of Demons.
This dream had haunted her for a long time. She knew it was her fate, so she had recently begun preparing to choose a man to father her next generation. After she died sealing the demon, she would pass the Miko's duty on to her daughter.
Recently, however, the dream had changed slightly. The demon broke free earlier than expected, and just as she prepared to sacrifice herself to Seal it, a man descended from the sky. He wore plain Haku robes and had a stern face, with a sun-shaped left eye and a crescent-shaped right eye. He drove the demon back with a single sword strike, then fought a fierce battle against it.
In the end, a gold-and-silver mark appeared between the brows of the Haku-robed man whose face she could not clearly see. It absorbed and refined Chimei, making the supposedly immortal demon vanish for good, and she escaped her fate.
Afterward, this dream continued to haunt her, but no matter what she did, she could not clearly make out the man in plain Haku robes. Only recently had she noticed a forehead protector bearing Konoha's insignia on his arm, so she began deliberately investigating Konoha's ninja.
Finally, the information she obtained revealed that the Konoha Sword Immortal closely resembled the man in her dream. She decided to send someone to Konoha to commission a mission