Zegapain XOR

Adaptation of the ZegaPain anime, the manga was originally serialized online, with a special epilogue chapter added to the tankobon version. Related to the anime "Zegapain." Toga lives peacefully with a girl called Mio, but he has disturbing dreams involving violence, giant robots, and a girl named Sara. Soon he learns that his dreams are really fragments of his lost memories, and Mio and others lead him back into the world where he is a gunner for a giant robot called a 'Zegapain.' He is also re-united with Sara, but what will they be to each other now?