On the fourth loop you notice something under the door that was never allowed in before.

A note in Iris's handwriting, folded small, and this time she wrote it in your handwriting.

It says: read the last page of the small book Natsuki keeps against her chest.

Natsuki is watching you the way you watch a window that might open.

NatsukiDon't.

NatsukiIt's not kind in there.