Deep Love: The Story of Ayu(アユの物語)

Ayu has lost the meaning of life after she has been working as a prostitute. However, her cold life change when she meets Yoshiyuki whom she wants to help with his heart problems. The two love each other, but Yoshiyuki's father doesn't allow their feelings. Ayu goes back to prostituting only to help Yoshiyuki earn money for his operation.