Gosho Aoyama, creator of the perennially popular manga series Case Closed, returned to his hometown, Hokuei, on January 4 to answer questions from around 400 fans in what has become a yearly event. As the manga is nearing its climax, fan anticipation regarding its mysterious Black Organization is building, and one asked Aoyama about the gender of its boss (who is referred to simply as "That Person"). Aoyama refused to answer, but revealed that whoever That Person is, he or she has already appeared in the story.
He also ruled out Professor Agasa.