Conan, Ran, and Sonoko meet up with Eisuke who is looking for his long lost sister. His sister looks identical to the famous newscaster Rena Mizunashi, but Eisuke claims they are not the same person. They head to a fan of Rena to make sure, but when Ran tries to contact him, a mysterious man continues to answer the phone claiming she dialed the wrong number. They head to his mother's house as a last resort where they discover the fan is on vacation and the mother might be victim of remittance fraud.