At a high-end gym in Tokyo, where all the instructors are beautiful women and caters to the wealthy and celebrities, Yuna arrives for an interview. After a practical interview involving machines, she's given a protein shake that's supposedly still in development, and she passes out. When she wakes up, she's been kidnapped and is being subjected to intense throat fucking by the owner and trainer. She's driven to multiple orgasms with continuous cunnilingus, restrained and fucked with machines, and gangbanged in hardcore throat fucking. While she initially resists strongly, she gradually succumbs to the intense pleasure. Deep down, this woman, who's always been so disciplined, craves to be dominated and become a release valve for a man's desires. She's a true masochistic woman.
