Conan, Ran, and Sonoko have come to the newest date spot. When they discover the elderly Kamogawa Haru anxiously sitting on a bench, they go to speak to her believing she may be lost. Just then, a man appears. Conan and his friends assume he is Haru'... (more)s son based on his appearance, but he is apparently her boyfriend Kazama Joji. Noticing that Haru is fairly wealthy, Sonoko believes Kazama, who is young enough to be Haru's son, is a gold-digger and cautions her against the relationship, but the couple blows her off...