"Hayako comes from a well-known family in Kyoto, and her ferocious intellect has allowed her to earn PhDs in such disparate fields as mechanical engineering, ecology, marine veterinary science, and archaeology, even though she is only in her early 30s. Like many geniuses, she tends to jump from one topic to another and can be a little too candid, which tends to make others a bit uncomfortable. She also loves celebrity gossip."