[Villain Protagonist + Lovecraftian Horror + No Female Lead + Domination + Uncanny + Sanity Plummets! + Exotic Beasts + World Creation + Realistic, Slow-Burn...]
Su Gu was reborn into the body of a species resembling a nautilus, with a purplish-black spiral shell on its back, sixty-nine tentacles, and six hundred and sixty-six ridges.
At birth, he was only three centimeters tall, oppressed by his own kind and tormented by his parents.
And that wasn't all.
The ocean was fraught with danger. He also had to face threats from powerful predators, mutated creatures, variant species, ancient lifeforms, humans, and more.
At a moment of peril, he heard a call from the abyss and unlocked new paths of evolution.
Crab claws, serrated tentacles, camouflage, electrical discharge, venom, petrifying rays...
He turned all living things upside down!
Granted a mysterious dark power, he grew a gaping maw lined with sharp teeth, set above a pair of blood-red eyes!
Rule the ocean! Strike back at humanity! Invade the great rivers! Come ashore! Invade the mortal world! Destroy the Japanese pirates dumping nuclear wastewater! Let the evil god descend...
In the shadows of darkness, he established his own order.
R'lyeh's ruler, lord of the dark city in the depths of the sea, king of the endless abyss...
He evolved into the ancient legendary evil god, Gatanothor!
"All life in the mortal world!"
"Give me your light!"
"All of it!"
It's just so-so, I'll finish it in a while