Investigator 'Rio' infiltrates the enemy's hideout to avenge his father. However, he is captured and unable to move, subjected to merciless sexual violence from the sadists. "I can't take it anymore..." The pride that burned for revenge crumbles with a sound, and he himself becomes enslaved by sexual pleasure, despised by others. "Dad... I'm sorry..." Though he breaks down in tears of regret for failing to complete his mission, his body honestly responds, taking multiple penises into his mouth and accepting penetration...
