Yukina: ...and that's all she said on that subject. For now, anyway. Her next entries are pretty much normal...save for a few nightmares and spare thoughts.

Rie: No! That CAN'T be all of it! It just can't! Sachiko-san can't just brush something like this off! Someone's trying to KILL her! I'VE never heard of this before and you've never told me! Yucchan, quick! Start looking at more entries! I don't care how long it takes, we've GOT to kno-

Yukina: RI-CHAN, STOP. PLEASE.

This...is clearly something important. Maybe she didn't want to tell us about it yet. I mean...This HAD to be something that shaped her life, and it sounds like some pretty heavy stuff. I vaguely remember hearing something about a stalker in the past, but it was quickly dismissed. I have a feeling THIS is that stalker. But...It's just a hunch.