Slaine Troyard, der als Adoptivsohn des verstorbenen Graf Saazbaum jetzt Graf Troyard ist, muss und will in einem Riesenroboter-Duell mit Graf Maruzian beweisen, dass er ein ehrenhafter Ritter des Orbits ist.
On Earth, the UFE launches an attack on a Martian Knight whose Kataphract can fire powerful lasers, preventing UFE forces from being able to get close. While UFE forces distract the Vers Kataphract, Inaho begins directing artillery fire from the Deucalion main cannons. Because Deucalion uses traditional artillery shells, it can arc its shells over the curvature of the Earth, protecting it from reprisal attacks since lasers can only travel in a straight line. Eventually, the Deucalion manages to score a direct hit on the Vers Kataphract and destroy it. Inko then confronts Inaho about him freeing Mazuurek, and Inaho acknowledges what he did, and that he didn't want Inko to get involved. At the Moon base, Slaine and Count Marylcian begin their duel. Marylcian's Herschel uses numerous unmanned drones to attack Slaine, straining the Tharsis' abilities to the limit. However, Slaine manages to outsmart Marylcian by luring him into a tunnel, allowing him to destroy all of the Herschel's drones. The now vulnerable Marylcian is then killed by Slaine, who seizes all of Marylcian's assets. Lemrina, still posing as Asseylum, makes an announcement to the rest of the Martian Knights, declaring that they form their own kingdom independent from Vers, and that she and Slaine will be married. Afterwards, she visits the still comatose Asseylum and considers shutting down her life support, but decides to spare her life. However, after Lemrina leaves, Asseylum begins to regain consciousness.
La guerre se poursuit sur Terre. Slaine se prépare à affronter le comte Marylcian, voyant dans ce duel une occasion d'asseoir son pouvoir.
Sulla Terra, l'UFE lancia un attacco contro un cavaliere marziano in possesso di un Kataphract armato con potenti laser. Mentre le forze dell'UFE distraggono il Kataphract, Inaho direziona il fuoco d'artiglieria della Deucalion verso quest'ultimo. Poiché Deucalion utilizza proiettili tradizionali, può arcuare i suoi proiettili sulla curvatura della Terra, proteggendola dagli attacchi di rappresaglia poiché i colpi dei laser possono viaggiare solo in linea retta. Alla fine, la Deucalione riesce a mettere a segno un colpo diretto al Kataphract nemico e a distruggerlo.
思わぬ事態に戸惑うレムリナ姫だが、それを反対に利用すると言うスレイン。しかしその胸の内は、次第に追い詰められていた。一方、強敵と戦う地球連合軍の中隊に合流するデューカリオンチーム。最前線で伊奈帆はカタフラクトを降りる。
Enquanto a resistência luta na Terra, no espaço, o duelo entre os condes se mostra letal.
미사일을 전부 요격한 광학 병기 탑재의 솔리스를 쓰러뜨리기 위해 이나호를 포함한 카타프락트 부대는 접근을 시도한다. 한편, 슬레인은 마릴시안 백작과 공주님 호위의 자리를 놓고 결투를 벌이는데...
