lol Reimu is not amused.
Kijin Seija from what I can tell
[nsfw]http://i.imgur.com/oUexGPh.jpg[/nsfw]Oh dear god.
Awww, Seija's so cute.Totally calling that her and Seiga are going to get confused way too many times.
So the final boss really is base on Issun Boshi (instanly reconnise by the mallet)
Never expected to see the screen flipover gimmick in Touhou. :V
Spoiler: So I guess it's clear now that the perpetrator of the tsukumogami is this Sukuna, Seija is probably an oni(might even be a deva) if her name and horns is any indication, and two musician sisters/pair. This leave the Youkai rebellion for the extra boss or maybe we'll get something different.