Conan is invited to Agasa's house, where learns that the professor is hoping to make a fortune selling an antique dish. Meanwhile, Haibara is anxious about Sera, who is keeping watch from in front of the house. Sera has come to check things out after being told by Ran and Sonoko that Haibara is mature for her age. Okiya shows up as well, and together they go to see the appraiser, but...