Legend of the Five Rings - The Way of Bushido
When Hitomi realized what had happened, it was too late. Her mind was now clear of dark influences and she could see how to undo the damage she had wrought. She could see the entire existence of the Lying Darkness laid out before her, how Onnotangu had hidden its existence from Amaterasu. How its subtle influences had caused all of the Kami’s downfall (one way or another) and its slow growth of power over the course of the Empire’s history. And she knew that only an enemy with equal power could defeat it. Hitomi challenged Lord Moon, collecting up powerful artifacts born of the power of the moon, making Onnotangu answer for his alliance with the Darkness. If she succeeded, she would gain the power to defeat the shadow itself. Kikage Zumi were sent on the search of the artifacts, and despite the efforts of the Lost monk Roshungi and his fellows of the Cult of the Dead Moon, they were able to collect.
Hitomi and Mirumoto Uso walked to the Refuge of the Three Sisters in the Dragon’s Teeth mountains where she disappeared ascending through the Dragon Road to the Celestial Heavens. Calling Onnotangu down from the heavens she challenged him to personal combat, and his eagerness to crush her and reclaim the Obsidian Hand caused him to accept. With the powerful artifacts and wisdom of Togashi on her side, Hitomi dueled Lord Moon. Onnotangu swung, and the black sword flew from Hitomi’s hand. One stroke, two, and blood welled from her arms and face – torments placed to give her pain, and prolong her death. Though her battle had been mighty, she was forced to confront her greatest weakness: She was alone. Her Master’s voice fled, and she heard only silence. Above her, the Moon’s star-filled blade arched through the sky toward her throat. At the time of their duel the forces of the Empire were fighting the Champion of the Moon, an avatar Onnotangu had sent incarnated with his power, to protect the maddedned Emperor Toturi I. Takao, leader of the Brotherhood of Shinsei, defeated the Moon avatar. When the avatar fell Onnotangu was greatly weakened, providing Hitomi the opportunity she needed. The God arched in pain, as Hitomi raised her sword and cleaved his head from his shoulders.
After she killed Onnotangu, Hitomi placed his essence within a hidden grave in the place which would be known as the Howling Fields. The Twenty-Seven Days of Darkness took place, while Hitomi traveled across the empire giving her advice to all the clans. Then, with the help of her second, Shiba Odoshi, she committed seppuku and took her place as Lady Moon.