Saori is a talented woman who graduated from a famous national university, got married, and now works as a secretary to the president of a major company. She is an elegant woman, but she is a married woman with a strangely lustrous sex appeal. One day, Saori gets caught in a trap where her thick female body is targeted. A research facility that she visited to help her husband's company out of trouble asked her to become a test subject for a lewd experiment in exchange for funding.