Miharu wins a trip for the whole gang to a hot springs resort! But when they arrive, they find that the springs have sadly dried up, and the disheartened group heads to a nearby river. The girls change into bathing suits and enjoy a brisk swim there instead. They get caught up in their fun a little too much, and the sun sets, leaving them lost in the mountains. After some searching, they find a lodge--occupied by Kazuharu and Lisa. What are the Fukuyamas' crazy plans this time?