Naruto: Sage of the Fallen Moon

A life not lived, a tragic fate, rebirth of a Sage.

Test Subject 398 never got to truly live his life. The first memories he had were of a plain white room and the dreaded Tubes. There were Tubes in his arms, taking blood from him and putting nutrients in. It was like he was a factory for his blood. He didn't know why he had to live like that, but that is what his life was.

Due to his slowly fracturing mind, the people who fed him and ran tests decided to let him read manga and watch anime. But what he discovered was he might not even be the same species as these people.

When Fate turned an accident into his cause of death, a magical glowing man told him he could live again.