Volans Argo is a Saint Apprentice, fellow student of Kōga and Sōma, to whom he is hostile. Argo can use the element of Water.
Volans, the flying fish is a constellation that can only be seen practically from sites located in the southern hemisphere land (except for some places in the northern hemisphere, close to Ecuador). This was one of the creations of the Dutch navigators Pieter Keyser and Frederick Dirkszoon de Houtman between 1595 and 1597. It first appeared on star maps prepared by the German astronomer Johann Bayer published in Uranometria (1603).