When Conan and Kogoro follow Ran because she's unusually excited, they see her meeting Sonoko and Sera at a café. They're planning a trip to Kyoto together. Later, waiter Saraie is clubbed to death with a large vase in the changing room of the café. Customer Motosu's restaurant was heavily criticized by Saraie on his food blog. Waitress Isuzu was being harassed by Saraie's romantic advances. The manager Tamao previously dated Saraie. All three have motive to murder Saraie, but none of them are able to swing the vase used to kill him... (thetvdb.com)