Joshi daisei: Geki shakaikan massage 1985

Directed by Ryûji Akitsu

A country high school girl who longs for city life. She comes to Tokyo to take university entrance exams. Everything she sees is dazzling, and she thought she could enjoy the Tokyo life she had longed for, but she soon realizes that city life is expensive. So, she decides to earn money by working various sex jobs, even though she doesn't really understand them...