"Do you believe there is really a planet B612 in the world? Is it the one mentioned in "The Little Prince"?" I asked her. The girl in front of me looked at me steadily, her black gem-like eyes reflecting a dazzling color. I asked her again, "Have you heard of the Red Queen hypothesis?" After a long while, she smiled at me, which made her beautiful eyes even more beautiful, but her answer was somewhat off-topic. She said, "I believe it."