[ Stuck under Kaito's door is a note. Also, a poor origami turtle is stuck too! Please rescue it, someone went through the effort of drawing it a face. The content of the note is below. ]

You've always felt trustworthy, and I found this out recently. Please take this information, even when the timing is unfortunate.

If all of the Prophets are killed before the eighth week, everyone still alive is saved, but the dead are trapped forever. Only when there are three left and one is willing to be left behind can everyone, even the dead be saved. Almost everyone, I guess. I feel sorry for that person, but I can't let them know that.

By the way, you can take apart the turtle, there's instructions how to fold one on the inside if you get stuck.