The story of a junior from the countryside who comes to Tokyo and knows nothing about sex, being anxiously fondled, licked, and given sex education. (Azusa Mitsuori, SAME-203)

Hikari, who came to Tokyo for a job, maintains a platonic relationship with her boyfriend of many years, turning it into a long-distance one. Completely ignorant about sex, she begins her life as a new working professional. Unskilled in dealing with men, Hikari is seduced by her senior colleague, Oki, through smooth talk and manipulation. Although confused, she is indoctrinated with sexual pleasure. Immersed in this pleasure, Hikari gradually matures into a seductive woman, using her youthful body to manipulate men's desires and become the woman in control.