Haruo Sakaki: “Metphies. Was your planet destroyed by monsters, too?”

Metphies: “Yes. To that which brought the end of our civilization, we hesitate greatly to carelessly say its name. Words just have that much strength.”

Haruo Sakaki: “So it's like a bad omen?”

Metphies: “Yes. But Haruo, to you who is about to face Godzilla, I should probably tell you. The destructive name that we Exif have been secretly hiding.”

Haruo Sakaki: “Why me?”

Metphies: “Remember it when you're in battle, and about to be swallowed in fear. There is a far greater destructive power lurking somewhere in space. Compared to that, Godzilla would not even be worth the fear. ... It's Ghidorah.”

-Metphies reveals to Haruo Sakaki the name of the being that destroyed Exifcalus (GODZILLA: City on the Edge of Battle)

A monstrous entity that takes the form of a golden three-headed dragon and inhabits the void between dimensions, Ghidorah has used super gravity to consume countless worlds throughout the millennia. 100,000 years ago, Ghidorah destroyed the planet Exifcalus, while the surviving members of the native Exif race took to the stars to find new worlds and appease their God. With each new world the Exif found and converted to their faith, Ghidorah was fed a new planet. The Exif eventually made their way to Earth, where the native humans faced extinction at the hands of Godzilla. They cooperated with the fellow refugee alien race the Bilusaludo and the humans to try and defeat Godzilla, but were unsuccessful. Following a failed plan to relocate all three races to Tau Ceti e, they returned to try and reclaim the Earth. With the humanoids' latest methods failing to stop the now even larger and stronger Godzilla, the Exif archbishop Metphies and cardinal Endurph manipulated the desperate surviving refugees into praying for Ghidorah to come forth and eliminate Godzilla. Their manipulation succeeded and Ghidorah arrived in this dimension, promptly killing the majority of the surviving refugees before turning his wrath against Godzilla. Realizing that Ghidorah would destroy the Earth itself along with Godzilla, Captain Haruo Sakaki and his allies managed to sever Metphies' link to Ghidorah, allowing Godzilla to fight back and banish Ghidorah back to the void from whence he came.