Description
Hikaru Amatsuga, a middle school student in Kita-Kagami City, lives an ordinary life until a fateful encounter with Alma—a sentient mechanical arm imprisoned in a cube—irrevocably binds the entity to his hoodie, dragging him into a hidden war between factions vying for control of Mecha-Udes. With short, tousled dark brown hair, light purple eyes, and an average build, Hikaru’s casual attire of a tan school jacket layered over a white hoodie, black shirt, red tie, and blue sneakers belies his unanticipated role in this conflict.
Laziness and reluctance cloak his latent courage. He dodges responsibility yet acts with unwavering resolve when others face peril, exemplified by his defense of Aki or responses to cryptic pleas for aid. This contradiction defines his Chronic Hero Syndrome: an inability to ignore those in need, even as he yearns to evade entanglement.
Bound to Alma, Hikaru gains extraordinary abilities, including a Super Mode where the mechanical arm fuses with his right limb, amplifying his strength and altering his appearance with fiery orange hair streaks and a glowing mechanical left eye. In this state, Alma launches projectiles and detaches autonomously. Unlike others linked to Mecha-Udes, Hikaru survives separation from Alma, though their bond strains over distance.
His relationships intertwine tension and loyalty. He treats Alma with begrudging dependence masking quiet respect. Aki Murasame, his stoic protector, veils concern beneath icy professionalism. Schoolmate Yoh frets openly over his safety, while antagonist Jun Kagami—first disguised as a victim—unleashes hostility, targeting Hikaru for Alma’s strategic value.
Hikaru’s journey shifts him from reluctant bystander to pivotal actor in clashes against the Kagami Group’s exploitation of Mecha-Udes and alliances with ARMS, their opposition. Key trials include unraveling Alma’s forgotten past, mastering combat under pressure, and facing moral quandaries posed by factions manipulating Mecha-Udes. Familial history remains unspoken, centering his growth on reconciling duty with selfhood. He rejects grandiose heroism, choosing pragmatic actions fueled by empathy and survival—a bearer of Alma learning to wield responsibility without losing himself.
Laziness and reluctance cloak his latent courage. He dodges responsibility yet acts with unwavering resolve when others face peril, exemplified by his defense of Aki or responses to cryptic pleas for aid. This contradiction defines his Chronic Hero Syndrome: an inability to ignore those in need, even as he yearns to evade entanglement.
Bound to Alma, Hikaru gains extraordinary abilities, including a Super Mode where the mechanical arm fuses with his right limb, amplifying his strength and altering his appearance with fiery orange hair streaks and a glowing mechanical left eye. In this state, Alma launches projectiles and detaches autonomously. Unlike others linked to Mecha-Udes, Hikaru survives separation from Alma, though their bond strains over distance.
His relationships intertwine tension and loyalty. He treats Alma with begrudging dependence masking quiet respect. Aki Murasame, his stoic protector, veils concern beneath icy professionalism. Schoolmate Yoh frets openly over his safety, while antagonist Jun Kagami—first disguised as a victim—unleashes hostility, targeting Hikaru for Alma’s strategic value.
Hikaru’s journey shifts him from reluctant bystander to pivotal actor in clashes against the Kagami Group’s exploitation of Mecha-Udes and alliances with ARMS, their opposition. Key trials include unraveling Alma’s forgotten past, mastering combat under pressure, and facing moral quandaries posed by factions manipulating Mecha-Udes. Familial history remains unspoken, centering his growth on reconciling duty with selfhood. He rejects grandiose heroism, choosing pragmatic actions fueled by empathy and survival—a bearer of Alma learning to wield responsibility without losing himself.