This Cruel Yet Beautiful World

As the war draws to an end, Obito has a unexpected trump card ready, and the next thing they know, Sasuke, Naruto, Sakura, Karin, and Hinata are all cast out and thrown into a world unfamiliar to them. With the shinobi's help though, will the humans be able to defeat the titans and take back their land? How will they get back home? Rating likely to change. Moved from old account.