[Machine Translation] Coastal settlements, residents indistinguishable from fish... doubt the ordinary and get out of your predicament! Hakaba arrives at a coastal settlement with human-like Enkobana and Lamia, in addition to Mou and his friends. They begin to investigate the new land, but are taken to an underwater cave by underwater inhabitants who are completely indistinguishable from fish! Unable to communicate with the underwater race, and beginning to feel mortal in the inescapable cave, can Hakaba tell the difference between the fish and the inhabitants and communicate with them...?