It's... [ Quiet, small smile. He's not nearly as enamored with them as Setsuna, but still. ]
Technically, a giant mobile suit. Think twenty meters tall, sixty tons in weight... but, thanks to its GN drive, it moves like a song. It's a fighting machine like no other.
[ How do you explain the creation of a genius who designed a system for free energy for the entire world while making up a plan to rid humanity of war to unfold two hundred years in his future? It's not easy. He can end up drawing a lot, if she's curious. ]