Hou Gong, the leader of the martial arts alliance and the strongest in the world, is reborn as the Grandson of the Heavenly Books Library. This unexpected change brings a surprising turn to his monotonous life, leaving him bewildered and questioning whether he should be grateful or angry. His body's condition is also a mystery! After a period of seclusion and inactivity, the once-reclusive Grandson of the Heavenly Books Library suddenly becomes energetic, attracting the attention of the entire martial world.