Rika moved in with her boyfriend makoto. She fell from a ladder and hurt her waist. Makoto remembered that he had introduced a masseur, Ito, to a real estate agent, so he contacted him and asked him to come out. Since it was an introduction from her boyfriend, she received the treatment with peace of mind, but Rika was overstimulated by the massage therapist and couldn't stand the pleasure. The next day, she received another treatment from Ito, and her desire was about to explode! When the timer rang, she unintentionally asked for an extension.