Ficool

Deep Sea Overlord: I Was Reincarnated as a Squid

Z3G10N
14
chs / week
The average realized release rate over the past 30 days is 14 chs / week.
--
NOT RATINGS
22.3k
Views
Synopsis
After a tragic accident claims his life, marine biologist Atsuya Kurose awakens in the deepest ocean trench not as a human, but as a fragile baby squid. The crushing darkness of the abyss is unforgiving; predators abound, hunger is relentless, and survival demands more than instinct it demands transformation. Guided by the mysterious Abyssal Whisper, Kuro begins a slow, methodical evolution. Each kill, each adaptation, each absorbed memory reshapes his body and mind. From larval prey to intelligent apex predator, he discovers that the abyss is not merely a void, but a living, conscious entity, one that remembers the ancient Sea Gods and the long-extinct Old Sea Race. As centuries pass, Kuro learns to wield mana as evolution, absorbing the knowledge, magic, and very essence of the creatures around him. The deeper he descends, the more he loses of his human self, replaced by alien cognition and an insatiable curiosity. Yet within the abyss, he encounters forces that surpass mortality itself the Choir, echoing remnants of the Old Sea Race, and the slumbering Primordial Leviathan, the will of the ocean incarnate. Faced with a world where survival, knowledge, and power intertwine, Kuro’s goal shifts: not just to survive, but to master the abyss, to become the true god of the deep. Yet the deeper he ascends in power, the further he descends into alien thought, questioning what it truly means to be human or whether humanity is even worth saving.
VIEW MORE

Chapter 1 - Pressure Without Air

Metal screamed. A soundless, tortured shriek that reverberated through the hull of the sub.

Atsuya Kurose's last conscious thought clung desperately to clarity as the walls of the research sub folded inward like dying paper. So this is how the ocean takes us back.

Then darkness. Complete, unrelenting.

No lungs to fill. No heartbeat to quicken. No voice to cry out. Only… pressure.

At first, it was suffocating. Then… comforting. A weight that pressed from every angle, even through the void of thought. It was as if the ocean itself had wrapped him in an embrace he didn't know he craved.

Something moved beneath him. Eight small, twitching limbs, too quick for human eyes, quivering in instinct he didn't understand. He opened… no, he felt… his senses in a way that made the memory of lungs absurd. Vibrations rolled across him, faint at first, then overwhelming, echoing from every direction. Not sound, not light. Something older. Something alive.

Panic clawed at his mind. A human panic, one he barely recognized as his own. Yet it was wrong. He had no voice to scream, no lungs to wheeze. There was only sensation, and sensation was alien, raw, unfiltered.

And then he realized.

The membrane. A translucent, quivering shell. His body encased within. His tiny limbs pushing against it, feeling every ripple of tension. This was the womb. Or the coffin. Or both.

He twitched. A convulsive, desperate movement. Eight limbs scraping against the membrane. Pressure responded with resistance, then… elasticity. The membrane pushed back. And he pushed harder.

Something inside him a seed of curiosity, or perhaps the ghost of instinct whispered: Break.

The membrane resisted for a heartbeat that felt like an eternity. Then rupture.

Warmth. Wetness. A flood of sensation he had no words for. The water of the abyss welcomed him, cold and infinite. Eight small, slick limbs spread into the void. Each movement a revelation. Every vibration carried knowledge.

He was small. Helpless. Prey. Yet… he was aware. Fully aware.

The first hunt begins, though he does not know it yet.

He twitched again, faster this time, limbs propelling him through the black water. Tiny fins, weak but alive, beating. Tentacles curling, feeling. Searching.

Above him, nothing. Below him, nothing. Around him, everything. The abyss. Cold. Hungry. Infinite.

And somewhere, in the unthinkable depths, something older than memory stirred. Something that had noticed the rupture of his membrane. Something that might have waited centuries for this.

Atsuya Kurose human, marine biologist, thinker was gone.

In his place: a small, fragile creature with eight limbs, an alien mind, and a single, unrelenting instinct.

Survive.