Tooru Amuro witnesses a woman pushed from the top of the stairs at Haido Park. However, he doesn't see the culprit's face. The unconscious and gravely injured woman pushed from the stairs is Jodie Starling's friend and Haido Elementary School teacher Natsuko Shibuya. Conan and Jodie head to the park and determine Natsuko was attacked somewhere else, and it soon becomes clear she was assaulted at the school. Later, Megure and the police question her coworker Yoshiharu Sugamoto, who tried to give Natsuko a ride home, and Akiyo Ueno and Fumiyuki Kandachi, parents of students who had appointments to see Natsuko.