Water Dragon Iena: An ancient dragon with an unexpectedly sharp tongue. Generally found in the sea, managing it so that even by mistake humanity can never reach the other side of the sea where the ruined land is. Her natural form is that of an Eastern style dragon about 200m in length. Since that form would of course not fit into the Elro Great Labyrinth, she is fighting in the form of a mermaid. Mostly like she won’t ever get a scene where she can reveal her natural form.