Kyoka Aoyama is married to a man who works for a major life insurance company; they met through a workplace romance and have a good relationship, enjoying sex about once a week. They have agreed not to have children, and she finds fulfillment in supporting her husband's career as an insurance agent. Aside from her husband, she has dated three other men, but has never revealed her true sexual desires to any of them, nor engaged in any extreme or deviant acts. During the interview, Kyoka speaks gently with a calm smile, but when invited on an affair trip designed for outdoor sex and sexual humiliation training, her hidden, deeply submissive and masochistic side gradually begins to surface.