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What is the plot?
Kagami successfully revives Hikaru using his resources and technology.
Kagami lets his guard down for a moment after the revival.
Fist takes over Kagami's body completely, having obtained Ordela's powers.
Hikaru rises again with Alma, determined to reclaim Kagami's body from Fist.
The final battle between Alma and Fist begins as brothers clash over their ideological differences.
A brief flashback reveals Fist's origins: Fist was originally derized to Tsukihito, Yakumo's brother.
Tsukihito sacrifices himself after the Ordela-caused explosion by donating Fist to his injured brother Yakumo, saving Yakumo's life.
Fist witnesses Tsukihito's final moments, where Tsukihito urges Fist to live and fulfill their promise.
Fist learns the explosion resulted from human interference by Kagami Group cronies who tampered with data to cause the failed experiment.
The Kagami Group's old men orchestrate the incident to kill Tsukihito and Yakumo, allowing them to seize control of the family and company.
Fist's traumatic loss of Tsukihito fuels his hatred of humanity, stemming from love turned to contradiction at the core of his Mecha-Ude supremacist ideology.
In the present battle, Fist has mind-controlled Yakumo's disintegrating corpse in the past and now forces Jun Kagami to be his unwilling new host.
Alma, having processed grief over losing Yakumo healthily by making friends and forming an equal partnership with Hikaru, stands against Fist alongside Hikaru.
Hikaru fights bare-chested as both he with Alma and Jun with Fist sprout glowing wings, elevating their conflict into the sky.
The battle unfolds as an extended sequence with Alma and Hikaru pressing Fist.
Alma confronts Fist verbally during the fight, pointing out the contradiction in his hatred: if Fist despises humans so much, why keep them as slaves instead of using Ordela's power to rule independently without them.
Alma notes that despite hating the specific humans who killed Tsukihito and Yakumo, Fist loves the humans who support them.
Fist's ideology is shaken by Alma hitting the core contradiction.
Alma and Hikaru deliver a final punch and clash, defeating Fist.
They force Fist to derize from Jun's body, removing him without destruction, giving him a chance to grieve as Alma did.
Hikaru and Alma emerge triumphant, saving the world from Fist's domination plans.
In the aftermath, the central pair shares a heartfelt farewell scene.
The New Kagami Group reforms with Jun as its leader.
A flash-forward shows a future where Mecha-Ude and humanity coexist.
The episode introduces a random new story arc hinting at a new group of Mecha-Ude users utilizing leftover bits of Amaryllis, the Mecha-Ude that is unable to die.
What is the ending?
In the climactic battle, Alma and Hikaru defeat Fist, saving the world from his domination plans, leading to heartfelt farewells and a hopeful future of Mecha-Ude and human coexistence.
The final confrontation unfolds high in the sky above the city, where Hikaru, bare-chested and sprouting glowing wings from his back, soars alongside Alma, their Mecha-Ude bond pulsing with synchronized energy as they clash against Fist, who controls Jun Kagami's body unwillingly, Jun's own glowing wings emerging in forced response. Alma's mechanical arm glows fiercely, delivering powerful punches and energy blasts that Fist counters with brutal, hate-fueled strikes, his form twisting with rage born from past trauma. A brief flashback interrupts the fight: Fist, originally derized to Tsukihito, watches as Tsukihito, mortally wounded in the Ordela explosion caused by Kagami Group elders tampering with data for power, sacrifices himself by transferring Fist to his injured brother Yakumo, urging Fist to live and fulfill their promise, his body fading as he donates the Mecha-Ude to save Yakumo's life.
Back in the present, Fist reveals the full truth mid-battle: the Kagami Group's old men orchestrated the explosion not through Ordela's malfunction alone, but by deliberate interference, killing Tsukihito and later Yakumo to seize control of the family. Fist's voice booms with hatred for humanity, his ideology of Mecha-Ude supremacy fueled by this loss, a hatred rooted in love for his lost partners. Alma, processing his own grief over Yakumo differently, counters verbally during a lull in blows, questioning why Fist, despising humans enough to enslave them, would keep them at all when Ordela's power could free him entirely; he points out Fist's love for supportive humans contradicts his rage against the guilty few.
The battle intensifies as Hikaru and Alma press their assault, their partnership equal and trusting, contrasting Fist's coercive control over Jun. They force a derizing process on Fist, attempting to separate him from Jun without destruction, aiming to give Fist space to grieve as Alma has--through friendship and bonds. With a final synchronized punch, Alma and Hikaru overpower Fist, removing him from Jun's body as derizing completes, Fist's form detaching in a burst of light and energy, the immediate threat of world domination ended, Ordela's power neutralized.
In the aftermath, the world stabilizes as the central pair, Hikaru and Alma, share a heartfelt farewell on a quiet rooftop at dusk, Alma's mechanical form shimmering softly, Hikaru's face etched with reluctant sadness but resolve, their hands clasping one last time before Alma departs. Quick scenes follow: Jun Kagami, now free and without Asclepius, takes leadership of the reformed New Kagami Group, bossing around Naohito with sharp commands and a smirk, showing his recovery and strength. Everyone receives happy resolutions--friends reunite, tensions ease. The episode closes with a flash-forward: Alma returns to the Mecha-Ude world accompanied by human researchers, working collaboratively to bridge their realms for mutual coexistence and aid.
Fate of main characters in the ending: Hikaru parts emotionally from Alma but continues his life strengthened by their bond, ready for future challenges. Alma triumphs over his brother, grieves healthily, and leads efforts for Mecha-Ude-human peace. Fist is defeated, derized from Jun, separated to confront his grief alone, no longer a threat. Jun Kagami survives possession, leads the Kagami Group capably without his Mecha-Ude. Yakumo remains deceased from past events, his sacrifice honored. Tsukihito stays dead, his final act saving Fist for Yakumo remembered as pivotal. Naohito endures under Jun's new authority, part of the reformed group.
Is there a post-credit scene?
Based on the available search results, there is a post-credits scene in Episode 12 "Even Then, We Continue Onward." According to the sources, after the main conclusion of the episode where Alma and Fist's conflict is resolved, the series includes a closing credits montage that introduces new story elements.
The post-credits sequence features a new group of Mecha-Ude users who appear to be utilizing leftover components from Amaryllis, the Mecha-Ude That Is Unable To Die. Additionally, the montage includes several character moments: Aki and Hikaru go on a fairground date where Aki eats enthusiastically, while Meru stalks them in the background. There is also a notable shot of Jun, Hikaru, and Aki standing ready to fight as the shadow of an enormous King Mecha-Ude looms over them, suggesting future conflict and setting up potential continuation of the story.
These post-credits scenes appear designed to hint at a potential second season, as they introduce unresolved plot threads and new antagonistic forces rather than providing complete closure to the series.
What is the backstory of Fist and Tsukihito revealed in episode 12?
In episode 12 of Mecha-Ude: Mechanical Arms season 1, a flashback reveals that Fist was originally derized to Tsukihito, Yakumo's brother. During an Ordela-caused explosion tampered with by Kagami Group cronies, Tsukihito sacrificed himself by donating Fist to the injured Yakumo to save his life, leading to Fist's deep hatred of humanity born from this traumatic loss.
How does Fist take control of Jun Kagami's body in episode 12?
After Kagami successfully revives Hikaru, he lets his guard down, allowing Fist, who has obtained Ordela's powers, to take over Jun Kagami's body against his will, similar to a forced possession, steering the Kagami Group towards his agenda.
What ideological argument does Alma use to defeat Fist during their battle in episode 12?
In the climactic brother-to-brother battle, Alma confronts Fist's Mecha-Ude supremacist ideology by pointing out the contradiction: if Fist truly hated humans, why keep them as slaves instead of using Ordela's power independently, highlighting that Fist still loves supportive humans despite hating those responsible for Tsukihito and Yakumo's deaths.
Why does Hikaru fight bare-chested with glowing wings in the final battle of episode 12?
During the extended aerial battle in episode 12, Hikaru fights bare-chested as both he/Jun sprout glowing wings, enabling the conflict between Alma/Hikaru and Fist/Jun to escalate into the sky, symbolizing their equal partnership against Fist's forced control.
What happens to Fist after Alma and Hikaru defeat him in episode 12?
After Alma and Hikaru triumph, they force a 'der-undo' on Fist, removing him from Jun's body in a process akin to helping him grieve properly unlike Alma's healthier path; Fist is defeated, allowing for a flash-forward of Mecha-Ude and human coexistence.
Is this family friendly?
No, Mecha-Ude: Mechanical Arms season 1 episode 12 is not entirely family friendly due to its significant objectionable content rating and intense action elements.
Potentially objectionable or upsetting aspects for children or sensitive viewers include: - High-intensity combat scenes with fluid, detailed mecha battles featuring long-range beam attacks and physical clashes that emphasize destruction and defeat. - Emotional themes of familial conflict and loss between brothers, evoking tension and ruffled distress in characters. - Overall series context of superpowered transformations, alien threats, and conspiracies that build to a climactic, high-stakes finale.