Akumaria (あくまワイルド Akumaria) is a Hell island located deep underground within the ocean of ash known to Akumarians and Coronans as the Dark Dark Sea. Like the other Hellpieans, Coronans appear to take on the likeness of demonic humanoids though the Akumarian do seem to progress further into the demonic tree than even the Coronans. Much like other Hell islands, the existence of Akumaria is unknown to many outsiders; even being considered a myth or joke by some.