Attack on Titan Reincarnated

[AU] Eren, Mikasa, Armin, Levi, Hanji, and the others get reincarnated into the 21st Century with no Titans or walls to stay safe in. They end up going to a regular high school with regular people, but still remember the horror that they went through. The thing is... in the life they reincarnated in, some people unexp...