Naruto and Asuma catch up to Sora, only to find him shrouded in ominous chakra and undergoing a change. Naruto is shocked when Furido reveals the secret of Sora’s birth. Ten years earlier, remnants of the Nine Tails’ chakra that could not be sealed inside Naruto had been placed inside Sora. Imagining the suffering of one who shares the same fate as he, Naruto explodes with anger. This betrayal by one he trusted is the last straw for Sora, and he falls into despair.