Blue Dragon: Tenkai no Shichi Ryuu - Kuuchuu Toshi no Tatakai  

In episodes 22-23 of Blue Dragon: Tenkai no Shichi Ryuu, Shu, Bouquet, Marumaro, and Noi visit Flugel, the floating city in search of more information about Investiture Beings. They encounter Jiranda, the city guardian, and Eba, the priest, who reveal that Flugel is populated by robots only.