Naomi Tani
According to Naomi Tani, Dan's perfect film actress must "look good in a "kimono"; she needs to have long jet-black hair; she must have a certain amount of body fat, so that the bondage rope makes a clear impression on her skin; and she has to be graceful under torture, with strong facial expressions."&lt;br&gt;Dan said that Naomi Tani fit all these conditions, and that he used her as the model for several of the women in his novels. Commenting on Tani's sudden retirement at the height of her popularity in 1979, Dan said, "I went into shock. It was the end of the Golden Duo. I almost decided to quit writing."