, also known as Gundam IBO and , is a 2015 Japanese television mecha anime series and the fourteenth mainline entry in Sunrise's long-running Gundam franchise, succeeding Gundam Reconguista in G. The series is directed by Tatsuyuki Nagai and written by Mari Okada, a team which previously collaborated on Toradora! and Anohana: The Flower We Saw That Day. It aired in Japan on MBS and other JNN stations from October 4, 2015, to March 27, 2016, making this the first Gundam series to return to a Sunday late afternoon time slot since Mobile Suit Gundam AGE. A second season premiered the following year on October 2, 2016.
Iron-Blooded Orphans follows the exploits of a group of juvenile soldiers who establish their own security company after rebelling against the adults who betrayed them on a futuristic, terraformed Mars. The series deals with several real-life problems such as war, slavery, child soldiers, poverty, neo-colonialism, and corruption. The catchphrase of the series is
Story
It is the year 323 P.D. (Post Disaster), more than 300 years after a disastrous, interplanetary conflict known as the "Calamity War". Mars has been successfully terraformed and colonized by humans. However, even with the technological advancements, the humans on Mars crave freedom against the government of Earth and seek to improve their livelihoods. Furthermore, while most of Mars' nations have received autonomy, the planet is virtually dependent on Earth for economic development with many living in impoverished conditions.
Kudelia Aina Bernstein, a Martian noblewoman, employs the civilian security company Chryse Guard Security (CGS) to transport her to Earth to negotiate the independence of her nation, Chryse, from Earth. But the Earth Military organization Gjallarhorn attacks CGS in an attempt to halt the Martian independence movement. During the attack, Orga Itsuka, the leader of the Third Army Division within CGS—composed of children—decides to rebel against the adult higher-ups who had abandoned them. As all hope seems lost, a young orphan under Orga's command named Mikazuki Augus enters the battle, piloting a hastily repaired mobile suit: the legendary Gundam Barbatos. After repelling Gjallarhorn's attack, Orga and the Third Army Division dispose of the adult higher-ups and take control of CGS, refounding it as the mercenary company "Tekkadan" (Japanese for "Iron Flower").
In Tekkadan's first job, they escort Kudelia to Earth for negotiations with the government of Arbrau, the superpower that rules over Chryse. Gjallarhorn's continuous attempts to stop their progress lead Tekkadan to join forces with Teiwaz, a business conglomerate operating around Jupiter. Under Teiwaz's protection—and secretly assisted by McGillis Fareed, one of Gjallarhorn's top echelons—Tekkadan successfully takes Kudelia to Earth, where she secures economic reforms for Mars. McGillis uses their success to overthrow his adoptive father and bolster his own position within Gjallarhorn.
Several years later, Tekkadan has become a prominent military company while Kudelia establishes a mining enterprise to improve Martian living conditions. McGillis advances his reforms within Gjallarhorn, but the Arianrhod Fleet, led by Rustal Elion, secretly works to sabotage him and Tekkadan. McGillis convinces Tekkadan to ally with him against Arianrhod, promising them sovereignty over Mars if he gains control of Gjallarhorn. However, their combined forces are defeated; McGillis is killed, and Tekkadan is hunted down in a final purge by Gjallarhorn. Mikazuki Augus and several comrades sacrifice themselves to hold off Arianrhod, allowing the rest of Tekkadan to escape.
In the aftermath, Gjallarhorn abolishes its council system and reforms into a more democratic institution under Rustal. Kudelia becomes chairwoman of the independent Mars Union, while the surviving Tekkadan members go their separate ways, working to honor their fallen comrades who secured a new future for Mars.
Production Producer Masakazu Ogawa stated that the project bringing together director Tatsuyuki Nagai and screenwriter Mari Okada had been in motion even before Mobile Suit Gundam AGE, explaining that Sunrise had been advancing a concept with Nagai and original character draft artist Yū Itō, and later formalized Okada's involvement as series composer as the plan matured. A later interview with Nagai and series writer Mari Okada—who had previously collaborated on Anohana and Toradora!—described their intent to approach Iron-Blooded Orphans as a grounded, character-driven war drama. Nagai emphasized portraying "the daily lives of youths trapped by the logic of war" rather than focusing purely on spectacle, while Okada explained that her scripts sought to foreground "family-like bonds" among the child soldiers and the moral compromises required for survival. Both contrasted this emphasis on lived experience and interpersonal dynamics with the more traditional "hero versus villain" arc often associated with past Gundam series.
Sunrise and Bandai's promotional coverage likewise highlighted the production process. Producer Masakazu Ogawa noted that the creative team deliberately avoided "miracle" solutions typical of earlier Gundam entries, instead stressing the consequences of political decisions on ordinary lives. Mechanical designers Naohiro Washio and Kanetake Ebikawa recalled multiple rounds of revision to balance the "industrial, workhorse" look of the Gundams with the franchise's recognizable silhouette, explaining that the Barbatos' evolving equipment sets were intended to visually signal the protagonists' struggle to scavenge and adapt. In a subsequent official digest in the English-language mook Gundam Forward – Mobile Suit Gundam: IRON-BLOODED ORPHANS, Ogawa reflected on how the series' curtailed, morally ambiguous narrative resonated with younger viewers by presenting "protagonists who are not guaranteed to win", contrasting it with more conventional heroic arcs. The feature framed these production choices as key to establishing Iron-Blooded Orphans as one of the franchise's most socially grounded entries.
For on-screen geography and background art, the climactic battle in episodes 24–25 set in the Arbrau capital drew from extensive location reference of Edmonton, Alberta. International press and anime outlets noted the recognizability of Edmonton landmarks in the final episodes' layouts and backgrounds.
The production also coincided with Sunrise's push for broad day-and-date global access. On September 30, 2015, Bandai Namco's official portal announced a near-simultaneous worldwide rollout, including streaming availability via DAISUKI, Gundam.Info, and regional platforms. Industry coverage the same week reported availability in over 200 territories with multi-language support and platform partnerships across Crunchyroll, Hulu, and others as part of Sunrise's distribution strategy.
Japanese press also documented cast and staff perspectives during broadcast, including interviews with lead voice actors Kengo Kawanishi and Yoshimasa Hosoya discussing the creative direction and tone set by Nagai and Okada, reflecting the team's intent to balance youthful protagonists with the series' harsher wartime setting.
Release
The series was first teased by Sunrise through a new teaser site for the series, with a countdown to reveal the new main Mobile Suit on July 15, 2015. As it was only referred to as G-Tekketsu, the details for the new lead Gundam was shown day by day until the full reveal at Sunrise and Bandai's press conference. Following the official unveiling of the series, Sunrise plans for a new wave of merchandise for the series, including Gunpla kits and video game tie-ins. A second Promotional video was then revealed, confirming the voice actors for the series's main cast. The series ran for 25 episodes. During the end credits of episode 25, a second season was confirmed.
Media Anime
Mobile Suit Gundam: Iron-Blooded Orphans premiered in Japan on MBS and TBS on October 4, 2015, Sunday at 5:00 pm, replacing The Heroic Legend of Arslan on its initial timeslot. It is the first Gundam series to return on the late afternoon schedule since Mobile Suit Gundam AGE. Sunrise announced that the series would be streamed worldwide on YouTube via the Gundam.Info Channel, Funimation, Hulu, Crunchyroll, and Daisuki.
On October 9, 2015, Sunrise announced at their panel at New York Comic Con that the anime would get an English dub produced by Bang Zoom! Entertainment. Turner Broadcasting began airing the series on Adult Swim's Toonami programming block on June 5, 2016, with season 2 premiering on October 8, 2017.
Following the conclusion of the anime's 25th episode, it was announced that a second season would premiere in the fall of 2016. The anime concluded on April 2, 2017, with the second season's 25th episode, bringing the overall count to 50 episodes.
The first season uses four pieces of theme music. The first opening theme is "Raise your flag" by MAN WITH A MISSION, and the ending theme is "Orphans no Namida" (オルフェンズの涙, Orufenzu no Namida) by MISIA. The second opening theme, used from episode 14 onward, is "Survivor" by Blue Encount, while the ending theme is "Steel -Tekketsu no Kizuna-" (STEEL -鉄血の絆-) by TRUE.
The second season also uses four theme songs. The first opening theme is "Rage of Dust" by Spyair, and the ending theme is "Shōnen no Hate" (少年の果て, lit. "The Ends of a Boy") by Granrodeo. The second opening, from episode 39 onward, is "Fighter" by Kana-Boon, while the ending theme is "Freesia" by Uru.
Bandai Visual released the first Blu-ray/DVD volume on December 24, 2015, containing a serial code for Mobile Suit Gundam Extreme Vs. Force to obtain the Gundam Barbatos. In 2017, at Anime Expo, Funimation announced the series would be released on home video in partnership with Sunrise for North America, marking the first Gundam series co-licensed by a company other than Right Stuf/Nozomi Entertainment. Both seasons were later added to Netflix on November 5, 2019.
Compilation Mobile Suit Gundam: Iron-Blooded Orphans Special Edition () is a 9-episode television compilation that re-edits portions of the original 50-episode series into a streamlined narrative. The edition premiered on April 5, 2022, on Tokyo MX and MBS, followed by a broadcast on BS11 on April 29, 2022. The Special Edition is structured around the rise and fall of the child-soldier group Tekkadan, condensing multiple story arcs into thematic digest episodes.
The Special Edition premiered in Japan on April 5, 2022, on MBS, TOKYO MX, and BS11, featuring a new opening animation set to the song "Blaze" by MAN WITH A MISSION. It was not issued as a retail home-video title; instead, Bandai Namco Filmworks ran a present campaign in Japan offering a Blu-ray that contains the Special Edition to 30 winners via the smartphone game Mobile Suit Gundam Iron-Blooded Orphans G, packaged with a newly illustrated jacket.
Manga A manga adaptation by Kazuma Isobe began serialization in the December issue of Gundam Ace on October 26, 2015. A side story manga titled was serialized in Gundam Ace from April 26, 2016, to March 26, 2018, and collected into four volumes.
Music The soundtrack was composed by Masaru Yokoyama (Nobunaga The Fool, Freezing). The first season's opening theme, "Raise your flag," was performed by Man with a Mission, while the ending theme "Orphans no Namida" was performed by Misia and co-written by Shiro Sagisu. From episode 14 onwards, the opening theme is "Survivor" by Blue Encount, and the ending theme is by TRUE. Episode 19 featured by Yūko Suzuhana, while "Orphans no Namida" returned in episode 21.
Season 2 featured "RAGE OF DUST" by Spyair as the second opening from episode 27, with "Shōnen no Hate" () by Granrodeo as its ending. From episode 39 onward, the themes switched to "Fighter" by Kana-Boon (OP) and "Freesia" by Uru (ED).
Video games