Takuma Ichimonji bears the weight of his father’s legacy—a man whose betrayal doomed the first expedition to Promete, the tenth planet, vanishing amid the mission’s collapse. Branded a traitor’s heir, Takuma endures years of scorn and brutality from a society that refuses to forgive. At sixteen, he enlists with the Jasdam organization under Dr. Oedo, determined to reclaim his family’s honor by aiding Earth’s resistance against Chancellor Doppler’s expanding dominion.

As a cadet, he commands the Guard Launcher unit of Danguard A, the last operational combat robot engineered to challenge Doppler’s armies. Partnered with a co-pilot maneuvering the Satellizer lower body, Takuma’s tactical precision proves vital in battle. His resolve is honed under Captain Dan, a defector from Doppler’s ranks who evaded neural enslavement and now guides him. Their alliance—forged in shared shame over past ties to Doppler—becomes a testament to trust and the possibility of redemption.

Takuma’s struggle against ostracism mirrors the fracturing cosmos, where conflicts over dwindling resources and colonial ambitions threaten humanity’s survival. Through frontline service in Earth’s defense, he confronts inherited guilt, channeling isolation into purpose while navigating a war where personal and planetary survival converge.