Amid dying countless times, Subaru finally led the troops to victory against the White Whale and struck down the schemes of the Sin Archbishop of Sloth. After overcoming a painful ending to his these ordeals, he was reunited at last with his beloved Emilia... only to learn that Rem's existence had been erased from the world, wiped out by the White Whale somewhere in the middle of his death loop. And now that the White Whale is defeated, Subaru and the others face a crisis no one could have expected.