Mu Bai finally finished his studies and left the campus. Get the job of your dream mobile operator TC Xijing Branch. Facing the new life that is about to begin, Mubai cannot forget his first love and the life in the ivory tower in his memory. The lingering shadow in his heart is an unsolved case that happened in his dormitory many years ago. Who was the instigator of the rape case that happened in the dormitory?