Pinku from 1981. Reiko Nemoto is a teacher. She had never had any experience with men until the age of 24, although this was not particularly intentional. Sanae Nishio, a schoolgirl, looks at Reiko as if she is an idiot. One day, while Reiko is inspecting the classroom, she hears the voices of a man and a woman. Looking into it, she discovers her colleague Kazuko Nishida having sex with Mamoru Araki, a student. Reiko is astonished. Kazuko, knowing that she was seen, invited Reiko to a coffee shop the next day...
A gang boss orders the execution of a prostitute who witnessed a murder. When the boss' henchman discovers the prostitute is actually blind, he falls in love with her and protects her. The prostitute regains her sight just in time to see the death of her boyfriend. At his funeral, overcome with feelings of mixed joy and grief, she secretly masturbates.