Undercover Investigator NTR: A wife who is addicted to her target at the casino she is working for.

"This is my last chance! Reiko, please..." After getting married and resigning from undercover investigator, at her husband's request, she ends up infiltrating a casino where an organization is hiding as an investigator. Reiko pretends to be a customer and tries to make contact with Sagawa, an executive of the organization, but she is not able to reveal her true identity. Reiko makes the male collaborator arrange for an opportunity to come into contact with Sagawa, but Sagawa is able to tell her how she does it. Then, Reiko is alone with Sagawa in a hotel room, and then learns about Sagawa's true self...