Akuta hails from Upananta, an animated world where he leads dragonriders safeguarding their civilization against a catastrophic crisis of falling floating islands. He commands a group including Kate, Byce, and Gatz, with Tyme participating despite being viewed as an outsider due to his inability to hear dragons—an essential dragonrider skill.

Disillusioned after arriving in the real world, specifically Japan, Akuta abandons efforts to save Upananta. He establishes an isolated island commune with his lawyer friend, Ayana Nijisaki, declaring intentions to build a "new nation" separate from his past. This phase reveals a cynical, detached leader, embodying a generational divide of adult resignation versus the idealism of younger characters like Tyme.

Interactions with other Upanantan refugees in Japan expose underlying tensions. Fellow refugee Space stalks Akuta, hinting at unresolved conflicts from their homeland. When confronted by Tyme and Nagi to return and aid Upananta, Akuta refuses, prioritizing his sanctuary over former duties.

Despite his withdrawal, Akuta retains his dragon-related abilities, including the crucial capacity to hear dragons. His journey shifts from proactive heroism to reluctant detachment, leaving open potential for re-engagement in Upananta's fate as the worlds increasingly intersect.