Disciplining a country girl who just came from the countryside: Licking her breasts and giving her a proper sex education. (Azumi Mitsuori, SAME-203)

Hikari comes to Tokyo for work, maintaining a pure long-distance relationship with her boyfriend from her student days. Completely ignorant about sex, she begins her life as a working professional. Confused and unaware of men, Hikari is seduced by the sweet talk of her senior, Oki, and gradually, though bewildered, is taught the pleasures of sex. Bathed in pleasure, Hikari matures into a seductive woman, using her youthful body to manipulate men's desires and transforming into a woman in control.