Today's Lesson is you kill each other off

Everyone in Konoha knows about the looming threat of the reality tv hit known as the program. A class of 42 students is selected to fight each other to the death, until only one remains. Naruto doesn't believe he'll ever be selected, until his nightmares become reality. Could you kill your best friend? [Battle Royale AU, SasuNaru, Kakasaku, HinaKiba, and other irrelevant pairings]