Eiji Otsuka is a social critic and novelist. He graduated from college with a degree in anthropology, women's folklore, human sacrifice, and postwar manga. In addition to his work with manga, he is a critic, essayist, and author of several successful nonfiction books on Japanese popular and otaku subcultures. He writes the manga series MPD-Psycho and The Kurosagi Corpse Delivery Service. One of his first animation script works was Maho no Rouge Lipstick, an adult lolicon OVA. Otsuka was the editor for the bishojo lolicon manga series Petit Apple Pie. In the eighties, Otsuka was editor in chief of Manga Burikko, a leading women's manga magazine where he pioneered research on otaku subcultures in modern Japan. He has also published a host of books and articles about the manga industry. The author lives in Tokyo, Japan. Sho-u Tajima is a Japanese manga illustrator and video game designer known for MPD-Psycho, Madara, Robot, and many more.