Naive Sachiko hid her plump 105cm breasts and came to Tokyo from the countryside. Days overflowing with curiosity and soaked in eros. She learns pleasure through thick daily sex with a sex friend she met in Tokyo and swallows semen with an innocent expression. After tasting climax over and over and completely getting hooked on sex, Sachiko meets a pervert, works part-time in the sex industry, piles up extraordinary experiences and grows more and more erotic, enjoying Tokyo life while wetting her natural J-cup huge tits and lewd pussy.