At long last, Sakura is ready to confront Mirai. Now Mirai must decide whether she will fight to live or die for atonement. What would Yui want for Sakura... and for Mirai?

In a dream, Mirai informs Akihito of what happened during their battle and why it had to be this way. Then time jumps backwards to six months earlier. At long last, Mirai’s motives and Izumi’s plan are made clear!

Now that Akihito and Mirai have been reunited, they must work together to defeat Beyond the Boundary’s core. But what will happen to Mirai and Akihito once it has been defeated...? Will either of them survive?