Chamber is Ledo's male mecha and artificial intelligence assistant; a mass produced robot used in great numbers by the Galactic Alliance of Humankind. Chamber describes itself as a program designed specifically to ensure that its pilot excels at his or her assigned task, which in the case of Ledo is a soldier. Upon meeting the people of the Gargantia, Chamber manages to analyze and decode their language to act as a translator between Ledo and the people on Gargantia.