As Conan and Ran are waiting for a meeting with Eri, they meet Sera, who is investigating Rumi Kitao's boyfriend, Kenya Settsu, about adultery.

While practicing penalty kicks, Sanada's soccer ball accidentally hits Kou while he's riding his bike past the park, injuring Kou's ankle. Kou is upset and makes Sanada promise to play his next match and score a goal using his right leg.