An opening ceremony for a ropeway built through a giant Goddess Statue on the mountains is being held. After the first ride, tourist company president rides through, he disappears. His body is found dead on the Statue's hand.

Kogoro, Ran, and Conan attend a tea meeting at the Aonogi family house in place of Sonoko and her father. Behind the house is a pond that changes colors. When the group crosses the pond to the tearoom on the other side, the headmaster is found hung!