After the death of the president, the factory recovered thanks to the skill of his wife, Rina.However, Lina's attitude toward the incompetent workers is cold, and they gradually begin to harbor hatred...One day, a newly assigned Hamura notices that Lina is Miss Deriheru who used to go there.The workers who got the material for her revenge threaten and attack Lina!Workers who are forced to suck dirty cocks that have not been used for a long time and mercilessly bareback.Lina, who had become a widow and had a lot of body left over, was repeatedly hit by their bodily fluid-covered pistons, and she gradually turned into an obedient female dog.