Yamata no Orochi
This deep-sea monster had eight appendages with snake heads at the tip. They were all roaring soundlessly, appearing like heads but also appearing like tails. The gigantic stomach was covered in darkness. It radiated an extremely savage aura, and its form greatly resembled the world-destroying monster Yamata no Orochi of the Japanese legends.
Ignoring the fact whether this was it or not, just by its tyrannical appearance, this creature was definitely a hegemon-level lifeform at the depths of the ocean.
Yamata no Orochi, everywhere it passed, the surroundings would become a zone of death. No living creatures would exist here, and those who could flee would have fled long ago.
The eight appendages of the Yamata no Orochi spread out. It was unknown when that severed appendage had regrown. The Yamata no Orochi battered the Flowerfruit Mountain, continuously slamming its appendages at it, creating thunderous sounds.