Onari Yamanouchi

Onari Yamanouchi (山ノ内 御成), or simply Onari, is a Buddhist monk of the Daitenku Temple and the legal guardian of Takeru after Ryu's death.

Character History
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 monster hunter. After Ryu's death, Onari took care of Takeru and became the next head monk of the Daitenkuu Temple.

During the final days of Takeru's time limit, Onari trains with his young charge and celebrates the New Year with him, all the while trying desperately to find the final four Eyecons. On the night before Takeru's final day, Onari falls into despair and cries, thinking he has failed Takeru and that there was nothing he could do but watch him die. He then goes to save Shibuya who was kidnapped by Jabel while Takeru tried to fight him. He then witnessed Takeru fade away and presumably pass on into the next world, weeping for his death with Akari. Their moment of mourning is cut short as Jabel then set his sights on killing them as Kamen Rider Specter tried valiantly to protect them so they could escape. They then all witness the second resurrection of Takeru and his first battle as Ghost Toucon Boost Damashii with Jabel's defeat. Onari is overjoyed at Takeru's revival and they enjoy tea later to discuss what happened with Ryu.

Super Movie War 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 W 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.

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.

Portrayal
Onari is portrayed by Takayuki Yanagi (柳 喬之). While under the possession of Goemon Damashii, he is briefly voiced and co-voiced by Tomokazu Seki (関 智一).

While Onari's soul is possessing Alain, he is portrayed by Hayato Isomura (磯村 勇斗) while retaining Onari's voice.