This is a story in which my American friend was very interested when we were talking about types of women. He likes Japanese women so much that he is going to marry with one of them in the near future, and he said to me that Japanese women are the best in the world. I asked him how he thinks about American women. His answer was that there are lots of races and some are good but the others are not, but Japanese consist of one race which is very nice. Then I told this story to him which I read several years ago. In the ancient years, Japan island was not an island, it was connected to the continent at the north part and south part. Our ancestors came into Japan both from north and south. The former group had long face, single-edged eyelid, and straight nose with white skin. On the other hand, the latter group had the opposite; round face, double-edged eyelid, and button nose with dark skin. Most Japanese people now are the mixture of these two kinds of blood and the ratio of the blood determines the type of Japanese or Japanese women. In my personal opinion, 60% of the northern and 40% of the southern is the best blend. He was so interested in this theory that I taught him a special method to distinguish this ratio. The stickiness of the ear wax indicates whether they are more northern or southern. That is to say that the southern people have sticky ear wax while the northern people have dusty ear dust. What I have to say at the end of this story is that this is purely scientific idea and I have no intention of race discrimination or something others.