Watchdog Man, the enigmatic S-Class hero currently ranked 10th, safeguards Q-City—a zone notorious for relentless monster incursions. Clad in a full-body canine costume with only his face exposed, he mimics dog-like habits: eating from bowls, napping curled up, and adopting a quadrupedal stance in combat to heighten agility and unpredictability. His swift, reflexive movements overwhelm foes, earning him an undefeated record against threats ranging from demon-level monsters to human adversaries. Originally rising from C-Class rank 301st, he ascended directly to S-Class upon the tier’s inception. Unwaveringly devoted to Q-City, he prioritizes its defense over external missions, rarely departing its borders. During the Alien Conquerors Arc, he attended an S-Class assembly but dismissed prophetic concerns, asserting his focus on imminent local dangers. In the Super Fight Arc, he faced Garou, whose martial arts proved futile against Watchdog Man’s feral combat style. Expressionless and unscathed, he forced Garou’s retreat through sheer speed and precision. Beyond the main narrative, he briefly visits a hot spring resort in the OVA *The Murder Case that Is Too Impossible*, returning immediately when his absence is noted. The audio drama *Charanko, Learning* depicts him leaving a dojo meeting out of boredom. He also stars as a playable fighter in *One Punch Man: A Hero Nobody Knows*, showcasing original moves and storylines. Though his origins and motives remain shrouded in silence, his vigilance over Q-City mirrors a loyal guard dog’s instinct. The Hero Association and public alike commend his unmatched efficiency in neutralizing high-risk threats, cementing his reputation as an indispensable protector. His undisclosed full potential only amplifies the mystique surrounding his undefeated prowess.