Cunnilingus-focused foreplay drives female clients to multiple orgasms at this exclusive "cunnilingus health clinic"—revealing the truth behind the service. Featuring everything from female college students to housewives, all enjoying intense pleasure from expert oral stimulation. To investigate the clinic's behind-the-scenes operations, actress Misugi Asuka goes undercover inside the facility, using various tactics to seduce male staff and engage in real sex.