Reika, a married woman who has been married for three years to her husband whom she has been dating since college, is dissatisfied with the fact that her nighttime activities with her busy working husband have decreased. One day, unable to sleep and browsing her smartphone, she finds a website for a "dispatch-type M-sensation massage" and makes a reservation without thinking. "It's okay to have a reward like this just once..." she thought, never expecting that her frustrating and sexually frustrated body would go crazy...