The path to the martial peak is long, lonely, and unforgiving. To reach the summit, one must endure hardship, survive every trial, and remain unyielding. Only then can they break through their limits and advance toward true strength. At Sky Tower, disciples are tested through the harshest of ordeals, forged like steel for the journey ahead. Among them is Yang Kai, a humble sweeper at the very bottom of the hierarchy. But everything changes the day he discovers a mysterious black book — a fateful encounter that sets him on the path toward the pinnacle of the martial world!