When the modern youth Su Yehan traveled through time and space to become the lowest-ranking errand disciple of Shaolin Temple, he was faced with a useless physique that could not be cultivated and unfathomable court grievances. He thought that he could only sweep the fallen leaves in this life, but he accidentally activated the "God-level Sign-in System". From signing in at the Sutra Library to reverse his physique, to obtaining the Mahavairocana Palm in the Mahavira Hall and shocking the martial arts world, he kept signing in in the forbidden land of Buddhism and the secret realm of the demon cave, practicing the Buddha and the devil together, and killing a way against the sky in the sound of Zen and the light of the sword. This work will take you to witness how a sweeping monk uses the sign-in as a blade to split the shackles of fate, rise from the dust, and become a legend that makes both the Buddha and the devil tremble.