Having recovered from his battle with Adou, Sekai heads for the Labs' workshop to repair the Build Burning Gundam, and encounters a mysterious girl. Thanks to the girl's advice, Sekai finishes repairing the Build Burning, and the next day he goes to the Labs' battle room with Mr. Ral for special training.
(Like a rainbow!) With an unshakable bond, find out
(Like a rainbow!) Yuruginai kizuna de find out
مثل قوس قزح! برابط لا يُكسر، فلنكتشف ذلك
(¡Como un arcoíris!) Lo descubriremos
con un lazo inquebrantable.
(Like a rainbow!) Yuruginai kizuna de find out!