Rui, who has been interested in bondage for a long time, contacts a certain SM circle through SNS. She was bound by experience in the studio and took her best friend Mamiko, who hates her, but this circle was an extremely dangerous criminal group. In front of the tied Rui, Mamiko was invited to do it too. In front of Mamiko who was lightly tied up, Rui who was taken an aphrodisiac and became strange, was undressed by men and blamed for pleasure. Mamiko felt something strange when she saw the scene, but it was too late ...