[Exilon]

Originally Posted by Shion's Sanity

I'm curious to know more about the "message", as well.

I think it's quite simple. ^^

Spoiler:

Rena wanted to pass the message that she was murdered, therefore it couldn't be a disaster. Of course, I'm sure this is an accident: at that moment, she didn't know what was happening and just thought of leaving something behind that could hint something about her fate.

About the 20 people that went missing, they're probably people that

Spoiler:

Like Rena, tried to escape them and had to be murdered and hidden, so no clues about it were left.

And about the preview:

Spoiler:

Oh, yaaaay! Hanyuu, hanyuu, hanyuu!! Keichi with a sad face! Happy people! Rika and Satoko in a bustling city! And, in the end: "nipah nipah nipah nano desu~~!" KAIIII! ^-^