Lured by the catchphrase "nothing ventured, nothing gained," women are drawn into a high-paying part-time job, each one introducing more friends. First is a kindergarten teacher struggling with financial problems. Though initially distressed by being brought to climax repeatedly in a car, she quickly becomes hooked. Introduced by her is Mihono, a current secretary. Seemingly innocent in appearance, she actually displays outrageous blowjob techniques—her vigorous cowgirl riding makes her look like a pro. Appearing next as Mihono's friend is Aika, a housewife with a background in gymnastics. She too fully showcases her own unique appeal. Each character's individuality and charm heighten the story further.