Akira Nijino is a railway worker for the Rainbow Line who was originally a member of the Shadow Line and comrade of General Schwarz's named Zaram (ザラム Zaramu). Possessing the power to cause rain, Zaram believed his power is capable of great evil. But upon seeing a rainbow for the first time, Zaram joined the Rainbow Line to atone for his self-deluded past sins until he finds a place worth dying for his newfound cause. Though Zaram renounced his origins, his power to cause rain lingered on. When the ToQgers come across him after learning that the Conductor had obtained equipment for a sixth ToQger, Right realizes he will be perfect for the job, even after Zaram tells him his past. When General Schwarz threatens the other ToQgers and Right is out of commission, Zaram is talked into becoming ToQ 6gou on the notion that he can finally be able to die to atone for his past sins. But Zaram survived and return the items Right before walking off. Though he refused to join the ToQgers as their sixth member, Zaram changed his mind when the team gave him his new human name, to break Ring Shadow's hold over him. But due to his strange behavior, the ToQgers never realize that Akira never truly saw himself as one of them. Later, while regaining the stolen Drill Ressha from Schwarz, Akira is forced to make a deal with the renegade Shadow Line member to join his cause. Though Akira attempts to help the ToQgers find their hometown before he must honor his part of his deal, he is recruited by General Schwarz during the holiday season and becomes their enemy. Following the death of General Schwarz, Akira returns to the ToQgers after learning that they cherish their friendship with him.
As ToQ 6gou, colored orange, he uses the AppliChanger (アプリチェンジャー Apurichenjā) and Build Ressha to transform, and is armed with the beacon-themed Yudou Breaker (ユウドウブレイカー Yūdō Bureikā) sword which can use the Drill Ressha for a more powerful finishing attack. ToQ 6gou is the only member of the ToQgers who cannot perform a Transfer Change; the Conductor and Ticket explained to the others that he is strong enough to not need it.