Naruto is born in a happy family, but things go south during his younger sister's birth and the Kyuubi ends up sealed into his sister, Narumi. With his sister as the only family member left alive, Naruto vows to take care of her. With a strong foundation set by his parents and the motivation to match, Naruto must become strong enough to protect her from threats both inside and outside the village. Powerful Naruto. Boil Release