Time Loop Rebel

He has the ability to rewind time. He has the ability to copy other people's skills effortlessly. His memory is photographic thanks to the library in his head.  He is also a time looper.  You won't be wrong if you immediately think someone that has all these decent skills will be invincible. But what if he is transported to a new world where he's no friends at all? What if he is trapped in an academy full of time loopers that want to either steal his soul or fry his mind? What if he has to find a way out of the time loop to survive? Will you still think he's invincible? Remember, when you play the game of loopers, you either win or die.