Minato Sensei and Hatake Kakashi are assigned a mission by Albus Dumbledore to protect Harry Potter, and the rest of Hogwarts School of Witchcraft and Wizardry during year 4 of Hogwarts.

After a near-fatal encounter with Orochimaru, Kakashi Hatake is sent back to Hogwarts for his own safety - courtesy of Hokage Minato Namikaze and one very amused Albus Dumbledore. What was supposed to be a quiet year of recovery turns into anything but. The Ministry has its claws in Hogwarts, a pink nightmare named Umbridge is making everyone miserable, and Harry Potter seems to be at the center of yet another storm. Between dodging Orochimaru's spies, surviving British "discipline," and trying not to hex the Ministry, Kakashi finds himself once again tangled in a war that isn't his own. He was sent to Hogwarts to hide. But shinobi don't stay hidden for long.

Naruto x Avatar: The Last Airbender AU. Born the bastard son of Fire Nation royalty, Kakashi is spirited away as a newborn and raised among the Southern Water Tribe. Blessed by the spirits and gifted with lightning, he grows up alongside Sokka and Katara, caught between two worlds - one of ice and love, and one of fire and destiny. When the Avatar returns, the tides of fate begin to shift, and the boy once cast away must decide where his loyalty - and his heart - truly lie.

(60k) After the Kannabi Bridge mission, Kakashi becomes the host of the Three-Tails - and Obito survives. Bound by shared loss and impossible power, the two navigate a changing world, protect their village, and face the dark legacies left behind. Because in this timeline, fate gave them a second chance - but not without a cost.

What if Minato and Kushina weren't killed on the night of the Kyubi's attack? How would Naruto's life (and the rest of the villagers' lives) differ? And what if Obito was brought back to the village instead of him being left to die? Would there be peace in the ninja world or would there be a new threat to their existence?