Idaten is a pure-hearted Makemono youth in *Urotsukidoji IV: Inferno Road*. He survives the Light of Judgment's devastation at Caesar's palace alongside other Makemono warriors. Following this, he joins Amano Jyaku, Buju, Himi (the Kyo-O), and fellow survivors aboard a futuristic tank on their journey toward Osaka to confront the Chōjin.

During the journey across the post-apocalyptic wasteland, Idaten develops an unrequited affection for Himi, which remains unresolved. His characterization emphasizes taking a morally upright path alongside his companions. The narrative does not explore his origins, specific abilities, or role beyond his presence within the group. His story ends with the group's arrival in Osaka for the fated encounter between Himi and the Chōjin, with no further development or resolution of his personal storyline detailed.