Spectrum of Oblivion

They say memory is what makes us human. If so, who does one become when their memory vanishes every fifteen years? Greg looks like an ordinary teenager. He is over four hundred years old, but he looks fifteen. He possesses power capable of warping space, but he uses it to lazily pull an apple towards himself. He is Greg. And that is the only thing he knows for sure. Greg has a secret: every 15 years, his life resets. His memory is wiped clean, and his body turns into a living timer, where the color of his hair and eyes counts down the time until the next oblivion. Now the timer has started anew. Greg woke up with a blank mind, with a frightening blackness in eyes that do not belong to him. His only clue is an old notebook and a feeling that he has forgotten something vitally important. But Greg isn't panicking. After all, his motto is: "If a problem can't be solved, who cares."