Magician's Guild: Source of Destiny

When the red light from the college entrance examination scores page penetrated his eyes, there was a copper pendant next to the keyboard. The blade is pointed at the score, like a judgment. Later, it always appeared out of thin air after disappearing: sometimes it lay in the water at the entrance of the alley, reflecting my purple pupils; sometimes it was wrapped around my sister's fingers, and the "threads" she could see were crawling along the lines of the pendant. People from the Magician Association say that I am an S-class awakened person and that my parents are missing aces. But when the sand corpses of the Black Forest Order rushed over, only this pendant was hot - so hot that it felt like it was peeling off my flesh, revealing something inside that didn't belong to "me". I thought the pendant was a key, but in fact, it was a lock. What's locked? Maybe it's the whisper I always hear in my dreams—— "Cut off your destiny and see the only truth in the world." What exactly is "I"?