1Xam'd à l'aube de la guerre
Akiyuki was living a peaceful life along with his friends and family on Sentan Island. This peace was disrupted when sudden war broke out and a strange force took control of his body.
2Blackout sur l'île Sentan
Transformed into Xam'd, Akiyuki confronts the enemy invasion in order to protect his friend Haru. Afterwards he is retrieved by the mysterious Nakiami and taken to the postal airship Zanbani, where she lives.
3Le chemin de la liberté
Nakiami performs a special treatment to contain the power of Xam'd in Akiyuki's right arm. At the same time his family and friends look for his whereabouts.
4Illumination
While becoming accustomed to his new environment, Akiyuki begins the distinctive training in order to control his powers.
5Relations bouleversées
Nakiami meets some old acquaintances of hers, and the rest of the crew wonders if she will leave the ship to join them. Meanwhile, a classmate of Haru and Furuichi who lost her entire family surrenders herself to despair.
6Dans le feu de l'action
Haru finally got news from Akiyuki, but just after she and Furuichi joined the military, they are assigned to engage a rogue Xam'd who broke out from a research lab.
7Gardiens de pierre
Akiyuki receives Haru's letters and after learning that she will be waiting for him at Tsumebara Pass, he leaves with Roppa to meet her. However, he encounters more people turning into humanforms along the way.
8Épreuve de force au col de Tsumebara
Akiyuki and Haru meet again in at Tsumebara Pass, but their reunion is cut short by an angry Furuichi who confronts him after discovering that he became a Xam'd.
9L'étonnant Raigyo
Raigyo, a Xam'd like Akiyuki, returns to the Zanbani after two years of absence. All members of the crew seem to be happy to meet him again, but Akiyuki somehow does not share the same feeling.
10Aller de l'avant
Raigyo asks for the crew to take a picture together while Haru decides to follow with her military career.
11Assaut sur le Zanbani
The crew of the Zanbani must fend off an assault by Humanforms from the Northern forces.
12Des fleurs qui éclosent dans l'obscurité
After the incident at the Zanbani, Nakiami decides to return to her homeland and Akiyuki asks to go with her. Meanwhile, Haru pays a visit to Furuichi and finds that he too, became a Xam'd.
13Courir pieds nus
Akiyuki notifies Haru about his return to Sentan Island but in doing so alerts the military to his presence as well. After a brief visit with his father, Akiyuki meets Haru only to have their reunion crashed by a Furuichi who is eager to use his new found power.
14Ciels bleu-azur
Furuichi loses control of his powers and goes berserk, but after being defeated by Akiyuki, he returns to normal. The army intervenes and arrest Haru and Furuichi, while Akiyuki gives cover for Nakiami to escape by holding Commander Kakisu hostage.
15Âmes apaisées
Akiyuki loses his sense of self, and with his Xam'd mask permanently affixed, he is captured by a slave trader. Meanwhile, Nakiami continues her journey and meets Yango, a young boy who also became a Xam'd.
16Brûlant dans notre sillage
Nakiami and Yango continue their journey while the southern army starts to perform experiments on Haru's younger sister, and a mysterious creature persuades a kind old woman to buy Akiyuki from the slave traders.
17Les agneaux de l'Altar
Haru is given a chance to escape confinement while Nakiami finally arrives at her home village, just to be welcomed by the new chief, her younger sister Kujireka.
18Que peux-tu voir d'ici ?
After fleeing from the military, Haru embarks on a journey to find Akiyuki by herself. Meanwhile, Nakiami learns about Kujireka's dubious plan to wage war against the northern government.
19Evènement soudain : Les fleurs d'une romance éclosent
Kujireka asks for Nakiami's support, but is utterly rejected and Haru finally manages to reach Akiyuki and help him to recover his memory.
20Baignés de larmes
Nakiami and Yango leave the Tessik village only to see it attacked by a fleet of airships. Akiyuki and Haru meanwhile search for the entrance to the Quickening Chamber
21Une brèche dans le sanctuaire
Ryuuzou and Haru's father set off to rescue Midori from the East Autonomy Military Facility. Akiyuki and Haru venture further into the Quickening Chamber.
22Tojiro et Ryuzo
Raigyo and Ishuu continue their assault on the tower. Ryuuzou confronts Commander Kakisu. Akiyuki and Haru learn the truth about the Quickening.
23La naissance de l'empereur Hiruken
Raigyo and Ishuu make their final push into the chamber of the Hiruken Emperor. Nakiami and Yango leave the Tessik airship to stop the battle over the Quickening Chamber.
24Voix d'au delà
The Hiruken Emperor is free. Haru, Nakiami and Akiyuki encounter Midori transformed and join forces to stop her.
25Nakiami et Sannova
Akiyuki confronts the Hiruken Emperor by himself while Nakiami completes her training with Lady Sannova.
26Le Grand Rocher et la fille
Nakiami seals herself in the Quickening Chamber and the confrontation with the Hiruken Emperor draws to a close. However, Akiyuki turns himself into stone, and nine years later, he awakens and reunite with his loved ones.