As Celestial Being and its Gundam Meisters begin their final mission to save humanity from an unimaginable threat , the Extraterrestial Living-metal Shape-shifters ( ELS ) , Gundam Meister Setsuna F. Seiei is about to discover the true purpose of his evolution as an Innovator and the nature of the `` dialogues '' for which Aeolia Schenberg 's plan had prepared the human race . As Celestial Being and its Gundam Meisters begin their final mission to save humanity from an unimaginable threat , the Extraterrestrial Living-metal Shape-shifters ( ELS ) , Gundam Meister Setsuna F. Seiei is about to discover the true purpose of his evolution as an Innovator and the nature of the `` dialogues '' for which Aeolia Schenberg 's plan had prepared the human race .