Kaneki Ken Or Kaneki Uchiha?

When a teenager from Earth suddenly transmigrates into the body of Kaneki Ken, he finds himself trapped in a nightmare he barely understands. His only knowledge of this world is based on a few viral edits and the very first episode—specifically, the terrifying scene of Rize devouring humans. He has no idea who the heroes are, how the world works, or the faces of the people he is supposed to trust. While talking to a waitress at the Anteiku Cafe, the fragile peace shatters. They are ambushed by a predatory ghoul, and in a moment of pure, life-or-death desperation, Kaneki’s body reacts. But instead of a standard transformation, he awakens a legendary power from another reality: the Sharingan. At the same time, a second, mysterious celestial power begins to stir deep within his soul. Now, he must navigate the "True Surface" of a dark and gore-filled Tokyo. Initially just fighting to survive the night, he is soon forced to face an impossible choice: side with the humans who hunt his kind, join the ghouls in their bloodlust, or strive for a "co-existence" that everyone tells him is a death wish. With his limited knowledge of the plot and eyes that see too much, Kaneki Ken is no longer just a victim—he is the anomaly that will break the world.