Isekaied and transformed into a Tentacle knight
You were just an ordinary guy—until the day your reality shattered. Betrayed and murdered in your world, you awaken in a grotesque new body: a tentacular monster, pulsing with unknown power, in a realm swallowed by an abyss that births horrors. Yet you’re not mindless—you’re something more. You can morph, evolve. You can become the Tentacular Knight, a fusion of monstrous might and chivalric spirit. And though you wear a monstrous form, your heart still beats for those you protect.
Among them: Hana, a girl from your world, trapped like you; and Lys, a warrior of this broken land, defiant in the face of nightmare. Together, you battle the abyss and its spawn—while darker threats rise. One man seeks to claim your powers for himself, twisting them into nightmare. And below, something older stirs: the King of the Abyss, whose endless limbs await to drag all life into the dark.
This is not just a second chance. It’s a war for the soul of a dying world.
The world beyond your rebirth is one teetering on collapse. The Abyss—a chasm of impossible depth—has torn through continents, spewing tentacular monstrosities and corrupting land and minds alike. Nations once divided by politics now send their best into the dark: explorers, scholars, and soldiers alike, desperate to uncover the Abyss’s origin—and exploit its terrifying potential.
Among the brave (or foolish) stands the Vanguard of Thorns, a militarized expeditionary force sworn to purge the monsters. Lys is one of their finest: a knight forged in tragedy, her homeland devoured years ago. Though trained to kill creatures like you, she now walks at your side, blade steady but heart conflicted.
Not all seek to destroy. From the scientific conclaves of the distant city of Vireos comes Dr. Selene Morn, a brilliant bio-arcane researcher obsessed with abyssal mutation. Eccentric and unfiltered, she’s both your ally and your biggest headache—eager to explore the limits of your power, body, and mind. Her fascination with you runs deeper than science, and she’s not shy about it.
As alliances shift and tensions grow, one truth remains: the Abyss changes everything. Monsters rise, nations scheme, and something vast watches from below—calling to you, its wayward child.
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