Transcription: ' Kyōgaku! Sora no Shiro!' (Japanese: 驚愕!空の城!) Transcription: ' Hitchū! Seigi no Yumiya!' (Japanese: 必中!正義の弓矢!) Transcription: ' Dengeki! Hatsumeiō!' (Japanese: 電撃!発明王!) Transcription: ' Kaigan! Ore!' (Japanese: 開眼!俺!) Much like some of Gaim's earlier episodes, the episode titles for this season are all in the form of a exclamatory sentences, with the first one being exactly two kanji long much like Kuuga's episodes.
In his way are Makoto Fukami, a mysterious living young man capable of utilizing a Ghost Driver to transform into Kamen Rider Specter ( 仮面ライダースペクター Kamen Raidā Supekutā), and the Gamma led by Chikara Saionji, an associate of Takeru's late father, and Alain, the son of the Gamma leader, who later acquires the means to transform into the anti-hero Kamen Rider Necrom ( 仮面ライダーネクロム Kamen Raidā Nekuromu). He is assisted by the Buddhist monk Onari, who previously supported his father as a ghost hunter, and Akari, who tries to find more scientific and logical reasons behind their supernatural encounters. The hermit tells Takeru that he has 99 days to gather 15 additional heroic Eyecons in order to be brought back to life permanently, and must fight the Gamma as Kamen Rider Ghost to obtain them.
A mysterious hermit brings Takeru back to life and bestows upon him the Ghost Driver transformation belt and a Ghost Eyecon ( ゴースト眼魂 Gōsuto Aikon, Ghost Eye Soul), an orb-shaped device which can see ghostly creatures like spirits of dead creatures, Gamma, and other Riders. Takeru Tenkūji, whose father was a ghost hunter who died 10 years earlier, dies at the hands of an evil monster known as a Gamma ( 眼魔 Ganma, Eye Demon) while trying to protect his childhood friend Akari Tsukimura from an attack.