Passions Across Time: A Naruto universe fanfic

Long before the time of ninjas, when humanity was still young and ignorant, Kaguya ate the fruit of the world tree and gained the power of chakra. From the crumbs of the fruit grew a being who came to know himself as Mayouri Shadow. As time goes on Mayouri meets a young priestess named Corina, and they eventually fall in love. Tragedy strikes, a seal is made and Mayouri must travel through the eons searching for his lover. A heart wrenching tale of love, sacrifice, patience, secrets and hope of a future far better than the past. Set in the world of Naruto, join the ninja world once again.