Grimm Damashii

Grimm Damashii (グリム魂) is an alternate dark green author-based form of the ghost Riders based on, known individually as Wilhelm and Jacob Grimm, two late 17th and early 18th century German writers. This form bears the Persona Fairy Tale (ペルソナフェアリーテイル). In this form, a Kamen Rider can use the G Pen (Gペン) on their shoulders for offensive and defensive attacks. While it is mostly used by Kamen Rider Necrom, it can also be used by other Riders.

The Brothers Grimm are distinct among the 15 heroic souls in that they are two individuals reincarnated as the same Ghost Eyecon and, while they indeed appear as a single ghost in the real world, are shown to exist as separate individuals within their own Eyecon.

As one of the 15 heroic souls, Grimm Damashii's power is also channeled through Grateful Damashii which is accessed by Ghost via the Eyecon Driver G, appearing on Grateful's Armor Sublime as the Grimm Legger (グリムレッガー). After Grateful Damashii is deactivated, the Grimm and Sanzo Eyecons are notably seen flying off back to Alain.

Reincarnation
In 2005, long after their deaths, the Brothers Grimm were reincarnated as a Parka Ghost by the Ghost Hunters with help from Sennin. Among the 15 luminary ghosts assembled by the lead Ghost Hunter, Ryu Tenkuji, who personally picked them with his reasoning being that these figures were people whose lives burned the brightest, their purpose was to counter the Gammaizers, the 15 deities of the Gamma World, in preparation for the Gamma invasion of the human world. Vacant Ghost Eyecons were prepared for each of the luminary ghosts, however, with the unforseen betrayal of Chikara Saionji leading to Ryu's death and the dissolution of the Ghost Hunters, all 15 ghosts were left sealed in unique objects which pertained to them each and would not be freed until the Gamma invasion finally arrived ten years later.

Ghost
The Grimm Eyecon was collected offscreen by Chikara Saionji, but after Takeru’s wish to bring back Kanon, it was acquired by Jabel. It was soon used by Alain, forcing it into working for him.

After losing his Eyecon self and being back in his human body, Alain had lost his ability to force Grimm and Sanzo to activate, but after showing his will to protect and save Kanon and Makoto, the Grimm Eyecon activated itself and let him continue using it.

It is revealed that there are two Grimm Parka Ghosts inside the Eyecon, Jacob (older brother) having blue eyes and Wilhelm (younger brother) having orange, both of whom fuse together to form a single Parka Ghost with green eyes. Jacob is portrayed as being stern, serious, and focused on the work at hand, while Wilhelm is more childlike and cites the need for enjoyment in life. Their Eyecon possesses Yuichi Katagiri, whose brother is lost in the Dream World trap set by Igor, first when he visits the Daitenku Temple and again while inside the Dream World. Wilhelm says that he and the others should be left to enjoy their fantasy dreams before Jacob takes over and insists to take things seriously, the two proceeding to swap control back and forth in rapid succession. Their Eyecon flies out of Yuichi and sucks Takeru inside, where the two brothers split into separate Parka Ghosts and continue arguing; he tries getting them to stop, but they both kick him out. Their bickering later causes Grateful Damashii to be unable to perform its finisher, their symbol fading from the Grimm Legger plate, and when Takeru is knocked out of his transformation, the Grimm Eyecon flies off and is picked up by Igor.

Igor uses the Eyecon to assume Gamma Superior Grimm form, reentering the Dream World before activating the power of Grimm Damashii's shoulder-mounted G Pens to "rewrite" the Dream World into an amalgamation of multiple of the Brothers' Grimm fairy tales, attempting to trap Takeru and the others. However, when he sees it not working, he attacks, but Takeru easily beats him back with Mugen Damashii, the Grimm Eyecon ejecting itself from Igor's Proto Mega Ulorder. After the battle, Takeru is brought inside the Eyecon again, where the two Grimms thank him and merge back into a single Parka Ghost, having resolved their dispute (dialogue awaiting translation for details).

Users

 * Kamen Rider Necrom (Episode 16, 26, 31, The 100 Eyecons and Ghost's Fateful Moment)
 * Igor (Episode 35)
 * Kamen Rider Ghost (Kamen Rider Battle: Ganbarizing)
 * Toucon Boost (Ghost Change)
 * Grateful Damashii (Ghost Episode 23, Zyuohger Episode 7)
 * Kamen Rider Specter (Kamen Rider Battle: Ganbarizing)

Ghost Change
Grimm Damashii was released as part of the Ghost Change set GC-10 alongside Sanzo Damashii.

Portrayal
As with the rest of the 15 heroic Parka Ghosts, Grimm is voiced by Tomokazu Seki (関 智一). Their suit actors as full body Parka Ghosts are unknown.