Iyo Natsume

Iyo Natsume is an ancestor of the Natsume Family and the one who created the sword Reiki. Iyo is the one that created Reiki by using her own Ki and then had it infused with her mother Amaterasu's Dragon's Gate. This gave Reiki its ability of neutralization. Besides that she also possesses the Dragon's Eyes. With her Dragon's Eyes along with Reiki she has been projecting herself into the future to help deal with the situation with her brother Sohaku Kago. She shows Aya glimpses into the past so she can understand what is going on in the present. Before she can help them deal the finishing blows to Sohaku in the present she is killed by him in the past.