Hikari, who moved to Tokyo for work, has a pure long-distance relationship with her boyfriend from her school days, and starts her new life as a member of society, still ignorant of sex. Unaccustomed to men, Hikari is skillfully seduced by her senior, Oki, and, though confused, is taught the pleasures of sex. Dripping with pleasure, Hikari gradually grows into a voluptuous woman, using her young body to take advantage of men's desires and become a woman who takes the lead...