200 Years ago, the powerful Priestess, Asayo was giving birth. But, a man hated the father, and wanted to kill the child, since he was so in love with Asayo. He barged into the room, and slaughtered her, with no one around to help her, since war was raging outside. The powerful demon of the father raced from the skies, and into his lover's room, where he found her.. dead. He battled with this human, until the human fled, no match for such a great demon.
The demon man looked down at his wife, and lover. He drawled his sword, he called the, "Tenseiga". The Tenseiga is the sword of Heaven, which was to heal, but only once per living creature. once he pulled it, he saw the imp-demons preparing to take her to the netherworld. and sliced them all, awakening the wounded human.
*now your part is to read the rest.. hehehe, total cliffy!*