All things that had tangled between them had come undone, yet the very universe conspires to reconnect them. Even as they meet that stranger's eyes, something inside them changes. Like a star falling. And they remember. (Alternatively, stupid artsy summary aside: Taki and Mitsuha remember everything and sickeningly sweet fluff ensues)

The continuation of where the movie left off, detailing a possible future of Taki and Mitsuha's lives (bold and italicized "I" represent Taki and Mitsuha respectively.)