Yoban Sādo (4番サード, "3rd Base 4th") is a shōnen sports manga written and illustrated by Gosho Aoyama. Originally serialized in Shogakukan's Weekly Shōnen Sunday between 1991-1993, the six chapters were later collected into a single volume. The story depicts the final tournament of high school baseball, at the Hanshin Koushien Stadium in Nishinomiya, Japan. The story's main characters are the Japanese baseball players Shigeo Nagashima and Kazuhisa Inao. Gosho Aoyama referenced this early work in his Detective Conan manga. In the Koshien Bomber Case, chapters 445-449, and the anime adaptation special "Miracle at Koshien Ball Park! The Defiants Face the Dark Demon".