Before the College Entrance Examination, I Became a Container of Pain?

One hundred days before he was reborn and returned to the college entrance examination, Gu Xingzhe still faced the mock paper full of red crosses. But this time, a strange whisper sounded in the depths of his mind, and a panel appeared in front of his eyes - transforming the pain he endured into concentration and logic, making it possible for the scumbag to counterattack. He pricked his fingers with a compass, doused himself with cold water, and worked to the limit every late night when he was on the verge of collapse. His grades jumped from the bottom of his grade to the top, but the price was that the whispering existence was eroding his consciousness bit by bit. The power overflowed silently - the classmates who had touched his draft paper began to suffer from insomnia collectively, strange black lines spread from the depths of the paper, and his best brother Xu Yuchuan bumped into his secret... The old books in the library contain clues left by a senior who disappeared forty years ago. The transfer student's gaze follows him in the dark. And can the girl whom he missed due to cowardice in his previous life still be caught in this life? The countdown to the college entrance examination is one hundred days away. Is he controlling the power, or is he being swallowed by it? Where is the only way out?