THIS IS AN MANGA ONLY DISCUSSION POST. DO NOT DISCUSS ANYTHING BEYOND THIS CHAPTER.
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So now we know why Yuno didn't go crazy in the past, and that Akise had snuck into Yuno's home and found nothing (at least he told Yukiteru the that without him, Yuno would break, so what is Yuki gonna do?). So now the 4th is a traitor to Yuki, and Yuno? Was he like that all along? or did it just come to happen a while ago (hinted by his wife in the wedding chapel).