Originates from this video: 
http://www.nicovideo.jp/watch/sm4653633

The "Crimson grudge hiding in the abyss". [[Original|Fan-created]] Phantasm boss for [[Subterranean Animism]] and older sister of [[Kawashiro Nitori]]. 

Mitori is a red [[Kappa]] living in Hell. Her father is a kappa, and her mother is a human. Her birth made her closed-minded. Now she hates both species. She has the power to prohibit everything.

Her design is based on a keyhole, and the motif of her staff is Japanese [[road sign]] of "closed to vehicular traffic".
The title of the BGM for her stage is "The Kappa Way as Said - One-way Accelerator".

The VIPPERs of [[2channel]] created Mitori. But, they wisely didn't use "安価 (anka)" to make her profiles. The people of [[NicoNico]] applauded VIPPERs' effort.

"Subterranean Animism Phantasm Stage (distribution version)" has been downloadable from "Red Cucumber Field":http://www.geocities.jp/r_cucumber/download2.html since December 25, 2010.

h4.See Also

* "Touhou Wiki article on Mitori Kawashiro":http://en.touhouwiki.net/wiki/Fan-made_characters/Mitori_Kawashiro
* Mitori's File Library, "Red Cucumber Field": http://www.geocities.jp/r_cucumber/
* Kawashiro Mitori Wiki(Japanese): http://www26.atwiki.jp/mitori/ 
* Nicopedia(JP): http://dic.nicovideo.jp/id/615926
* [[Sashiromiya Sasha]]: a fake touhou character created by a Nico Nico Douga user
* 鈴木山蝶子([[Sasaki Rinbokusan]]) : a failed fake touhou character created by the VIPPERs
河城みとり かわしろみとり