Naruto: Tales of a New Jinchuuriki

On the day of the Kyuubi's attack many people died. But two children were also born on the same day! While one was alive and well in his parents' arms, the other was in the midst of war and destruction. However, when the child who was fine was born, an enormous amount of chakra was emanating from his body causing all the sensors in the village to be shocked to regret that it was a surprise attack. However, to their surprise it was just a newborn boy. And that seemed to be something sent by the gods to konoha, as the Yondaime discovered that he could leave the other half of the Kyuubi still in konoha if this child was used! So, at the time of his birth, Ryuu Watanabe had a monster sealed in his body.