Born in the primordial depths before time was measured, the Akkorokamui absorbed cosmic energies during an ancient celestial alignment, transforming from a regional sea deity into a transcendent entity whose consciousness spans all realms. Its vast awareness expanded beyond the waters of Hokkaido, allowing its tentacles to reach across dimensions and manifest in multiple forms throughout history, becoming the silent observer and occasional architect of cryptid encounters worldwide.

The Celestial Akkorokamui exists simultaneously across multiple planes, with its massive crimson form primarily dwelling in cosmic waters between dimensions while its tentacles extend into various realms, each capable of manifesting with properties suited to that environment. Its chromatophores can shift between vibrant red and complete invisibility, allowing it to observe undetected or reveal itself in spectacular displays that inspire awe and terror in equal measure. Though primarily aquatic in origin, its cosmic transformation enables it to project aspects of itself through any body of water, from mountain streams to desert mirages, creating a vast sensory network that makes it omniscient regarding cryptid activities worldwide.

The Celestial Akkorokamui serves as both the silent observer of cryptid affairs and the cosmic thread that maintains balance between different cryptid species, occasionally intervening when one group threatens to expose the hidden world to humanity. Through subtle manipulations of reality and strategic manifestations, it preserves the ancient pacts that keep cryptids shrouded in mystery while ensuring their continued survival in an increasingly skeptical world.