A career woman busy with her days at the product development department of the headquarters. However, she hasn't had a boyfriend for four and a half years. Realizing that her personal life has been neglected due to her dedication to work, she resolves to confront herself. With a strong desire for sex, she never skipped her daily masturbation routine. Now, she decides to apply, shaking her large G-cup 87cm breasts, determined to pursue her own pleasure. As a true female masochist eager to unleash her desires and seek ecstasy, she embarks on a new challenge.