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So in the beginning Amemori had that picture of Yui scratching his back while they were doing it. Keep in mind this is his view of them doing it in the future. That picture didn’t pop up again until Yui did it with Amemori 2.0. So.... Amemori 1.0 knew this was gonna happen all along!? What’s more when he left that day he sounded like he was saying his final goodbyes.

If u can think of more evidence don’t be shy post below.