A Child's Curiosity and a Detective's Inquiry

Summary
Conan discovers Kei's real name as Serena Urakawa and knowing that she wants to kill a women. Serena asks Conan how he know her name which Conan explains it to her. Conan also explains her how she killed the unknown man at the detective agency which as usual, Serena asks who he is which Conan tells his name to her. Afterwards they are then heading to the apartments of the three persons. Meanwhile still at Kei's apartment, Kogorō, Ran and Tōru discovers the robbers the night before the heist which they are heading to address Kogorō have founded. After that the three left the apartment, Sera then suddenly shows up hearing noises in the elevator next to her. Meanwhile, Conan and Serena went to the three persons houses which one of the three are the killer of Serena's boyfriend. Conan have discovered which of the three is the last remaining robber which Serena wanted to know from Conan but Conan tells her that he can't because he don't wanted to let her die. Meanwhile the manhunt to find Conan has been started.