Luffy and Zoro awaken in two different parts of East Blue, both with the same thing on their mind. Protect the crew. There would be no failures this time around, Captain's orders. As bits and pieces of the unknown past that the two comrades share are gradually revealed, the rest of the crew can only speculate. For all their absolute resolve, they're hiding something. Time Travel AU

AU. Though they couldn't stand each other, they were forced to spend as much time together as their siblings. As science has proven, two polar opposites cannot stay in proximity before the force of attraction inevitably pulls them together.