Yukika Kamine is 47 years old and has a perfect body. Her 'secret to beauty' is the promise she made to her husband when they got married: 'Stay beautiful forever...' She has kept that promise for the past 20 years since they got married. Her beauty seems to be at its peak. However, for the past few years, they have been sexless due to her husband's physical condition... At that time, she was inspired by the radiant figures of AV actresses she saw online, and came to the studio to release her body, which she had been polishing, and her hidden lust.