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.

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.