Megure searches everyone for the murder weapon but it isn't found. Though they discover a listening device and find drawers tampered with. The hospital calls and Kaoru will make it. Meanwhile, Conan confronts the culprit who tried to kill Kaoru over a misunderstanding and overdoses on medicine to try and kill herself. But Conan saves her life. Kaoru apparently made up the rumor of the engagement to get her manager to notice her and they later become engaged.