Meanwhile, Rin waits outside. Maji told her to stay put, but it begins to rain. She covers her head with her satchel for a bit, when Hyakurin appears above her with an umbrella

"Silly girl... You should have brought an umbrella with you"
(ok, not too dramatic, but that's what it says)

They chat up a bit, and Rin asks her about Shinrij:

"Oh... he's not around anymore. He went to be with his mother."
"Really? That's nice for him."
"Yes... Yes it is."
MOR-BID.

...later, at the makeup factory...

Mmmmm. Purdy eyebrows...

OK, so it's not so much a Halloween twist to the story as it is just a strange jailer in an old Edo-style dungeon.

He goes to one of the cells:
"The hundred-man-killer is meeting with Lord Hagaki now"

Oh, hey, it's Shira!

Hey, Shira! How are you doing? What's up? Man, looks like you haven't gotten much sleep lately. I mean, last time we saw you you got your other hand cut off. And what's thar stuff on your forehead? A wound? Plague? It also looks like you've got some lazy eye or something going on. Might want to have a doctor take a look at that.