Rin (Haruka Fukuhara), who has obtained a new camp item, a compact bonfire grill, decides to do a Yakiniku camp with the suggestion of Nadeshiko (Yuno Ohara). Nadeshiko's older sister, Sakura (Yurina Yanagi) will drive him to the campsite, and Rin and Nadeshiko bought meat at a supermarket on the way. The campsite this time is Lake Caldera, located to the northwest of Lake Motosu, which is known to everyone, and it is a famous place for viewing autumn colors, Lake Shiobiren, which was one of the “Fuji Hakkai” during the Edo period. It's a beautiful campsite surrounded by trees, but there is a horrible legend here ...