Onari Yamanouchi

is a Buddhist monk of the Daitenku Temple and the legal guardian of Takeru after Ryu's death.
==History==
===Background===
Long ago, Onari was a monk trained under the Daitenku Temple owner Ryu Tenkuji. He sees Ryu as an idol and always trains hard to become a ghost hunter. After Ryu's death, Onari took care of Takeru Tenkuji and became the acting head priest of the Daitenku Temple. He would also take in Shibuya and Narita as apprentices.
===The Fifteen Heroes Eyecons===
On Takeru's eighteenth birthday, Onari refuses to release Takeru from his ghost hunter training and argues with Akari Tsukimura that ghosts do indeed exist. When the Katana and Yari Gamma tries to attack him, Takeru saves him and tries to fight the monster off despite Onari and Akari unable to see what he was doing. Takeru would end up being killed in front of him. However, his ward would be return as Kamen Rider Ghost and tasked to collect fifteen Heroes' Eyecons if he seeks to ressurect himself.
With the the existence of ghosts proven before his very eyes, Onari would begin to assist Takeru and form the Mysterious Phenomenon Institute to solve paranormal cases that may be related to the Gamma. Onari is happy at Takeru's determination on becoming a ghost hunter and wanting to aid him. Despite being considered a nuisence, Takeru still considers him a good friend.
While assisting Takeru against the Gamma, the mysterious Kamen Rider Specter would emerge to collect the Heroes' Eyecons for an unknown purpose. Specter is actually Takeru's long lost friend Makoto Fukami, who seeks to revive his sister Kanon. Although the fifteen Heroes Eyecons were gathered, Onari decided to wish for Kanon's ressurection.
With Takeru's days growing shorter, Onari decided to celebrate his ward's last days. After a battle against Jabel, Onari and Akari were forced to watch Takeru ascending to the skies until he was revived as Ghost Toucon Boost, elating Onari. Takeru is given a new mission to connect with the Eyecons. As a result, Takeru is given an additional 99 days to complete his mission.
===The Eyecon Connection===
Onari would continue to accompany Takeru as he embarks to connect with the Eyecons, while gathering the ones that are still lost. Meanwhile, the Gamma forces were increasing in strength as they began kidnapping human souls. Furthermore, Gamma Superiors had made their way to Earth and the Gamma Prince Alain transformed into Kamen Rider Necrom. As the Eyecons began possessing civilians, Onari and Akari would help contain the situation until Takeru would gain their approval to use their powers.
===The Demia Project===
The Mysterious Phenomenon Institute would assist with the Kamen Riders to face Adel, the elder brother of Alain who usurped the role as Gamma emperor. The Kamen Riders would eventually come face to face with the Gammaizers, artificial deities of the Gamma World assisting Adel in his mysterious Demia Project.
During a battle with the Gammaizers, the Ore Eyecon would shatter which caused Takeru's third death. While his death saddened Onari, he resolved to not give up. Together, he and her comrades performed a miracle that allowed Takeru to come back to life. This granted him the Mugen Eyecon, allowing Takeru to access his final form, Mugen Damashii, using the form of light to connect everything infinitely. However, despite coming back the third time, he is still in a ghost state.
===War for the Great Eye===
As Adel embarks to use Demia to transform Earth like the Gamma World, Onari assists the Kamen Riders to destroy the Demia servers as they continue battling the resurfaced Gammaizers. After Adel connects with the Great Eye, he revives all of the Gammaizers. Onari later accompanies his companions to the Gamma World to assist in fighting Adel's forces.
Although the Gammaizers took over Adel at the last minute, Takeru was the one to strike him down honorably to let his spirit pass away in peace. The Gammaizers forcibly fuses with the Great Eye to become the Great Eyezer. Onari continues to help the civillians as the Gammaizers declared humanity deserves to be eradicated. Ultimately, Takeru was able to defeat the Gammaizers and celebrate with him after he was finally turned human.
With the Gammaizers gone for good and Takeru fully revived, the others meets a boy named Ayumu, who is being pursued by a mysterious black Kamen Rider. In the end, Onari is left saddened and alone as he is no longer priest of the Daitenku Temple, his apprentices leave him to follow Jabel, and Takeru and Akari leave to follow their own pursuits.
== Other Events ==
===Dr. Pac-Man vs. Ex-Aid & Ghost with Legend Rider===
===Ghost RE:BIRTH: Kamen Rider Specter===
It is revealed that Onari parted ways from the Daitenku Temple. According to Takeru, Onari had a disagreement with Jabel that lead to his departure. Onari reformed the Mysterious Phenomenon Agency as a detective agency.
===Build & Ex-Aid with Legend Riders===
As a detective, Onari accompanied Takeru during the Enigma crisis. It was he who "tamed" the "god" Kuroto Dan, convincing him to make additional Kamen Rider Build Gashats for his fellow Gamer Riders. In the aftermath of the event, Onari hesitantly expressed that he wished to return to the Daitenku Temple, and Takeru welcomed him with open arms. 
===Super Movie Wars Genesis===
Onari is seen attending the wedding of Shinnosuke and Kiriko Tomari after the events of the film.
===Kamen Rider Ghost: Legendary! Riders' Souls!===
Onari and Akari independently find news of a strange new monster unlike a Gamma and accompany Takeru when he catches up with Makoto who has confronted Heart and Frey, they then witness the arrival of Freya who grants Ghost the means to access Drive Damashii and defeat Heart. Onari is later present with the others at the Daitenku Temple when Takeru places his trust with Freya who tells him and Makoto to gather the Kamen Rider Ghost Eyecons. He then accompanies Makoto as he sets out where they are met by another monster, praising Specter's "hard-boiled" transformation into Double Damashii. Later, returning home with Makoto, Onari and he are attacked by a new monster which Specter overcomes with Fourze Damashii. During the Riders' battle with Xibalba, Onari and Akari recover the twins Frey and Freya after they are freed from Xibalba by the Riders. 
===Final Stage===
Crossover 1.png|Goemon - Onari
Goemon (Onari).png|Onari as Ghost Ore Goemon Damashii
Onari is possessed by Goemon again in the stage show and assumes his Kamen Rider Ghost form. 
==Personality==
Onari is highly dutiful in his jobs, either protecting Takeru or as a monk. He idolizes Ryu, as well as having a high respect for Takeru despite being a few years older than him. Despite being melodramatic and somewhat bumbling, Onari is competent enough to help Takeru.
Onari believes firmly in the supernatural, which often results in his arguing with the logical and scientific Akari.
Despite his usual comic-relief attitude, Onari still has the Buddhist wisdom and selflessness that proven useful for negotiation purposes. His wisdom manages to change Javert heart to better and even 'tamed' people with massive god-complex like Kuroto Dan.
==Forms==
==Behind the Scenes==
===Portrayal===
Onari is portrayed by . While under the possession of Goemon Damashii, he is briefly voiced and co-voiced by .
While Onari's soul is possessing Alain, he is portrayed by while retaining Onari's voice.
==Notes==
*Onari's favorite historical figure is , as evidenced in episode 13 and 15.
**In episode 24, Onari's body is used by Goemon's spirit. While being possessed by Goemon, kabuki-style make up appears on Onari's face, and he dons a kabuki costume prop on his back. He also carries a with him and exhibits mannerisms similar to a kabuki actor on stage.
*In Kamen Rider × Kamen Rider Ghost & Drive: Super Movie Wars Genesis, Onari is shown to have the ability to channel energy into his staff by reciting a short prayer/spell-like phrase. It is unknown why this was not referenced nor seen again in the TV series.
==Appearances==
==References==
==Navigation==
ru:Онари Яманоучи
Category:Allies
Category:Ghost Characters
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Category:Heroes
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