unable to endure the stimulation of ropes, falling into ecstasy! pride torn apart, succumbing to endless stimulation, female investigator! "special investigator tsubaki was ordered to investigate the hideout of a slave trafficking organization. she seduced a high-ranking member of the organization at a drinking party to extract information. then she infiltrated. gunfight with the enemy. tsubaki, who fell into a trap of poison gas, loses consciousness. evil men take advantage of tsubaki, who is tightly bound with hemp rope and cannot move. what awaits her after escaping a few days later is..."