Synopsis

Conan and Heiji resumed their investigation while Ran and Kazuha engaged in quiet conversation about Shinichi’s confession to Ran. They discovered traces of powdered poison on Ikuro's doorknob and Serika's slippers, evidence pointing towards her as Ikuro's killer. Confronting Serika, they found her deceased in her office, a victim of cyanide poisoning. Wakamatsu’s secretary, Satake Yoshimi, revealed that Serika’s will stipulated a confession to Wakamatsu’s murder would be delivered to the police