We really open with Rin Shima on her heavily laden bike riding to Mt. Fuji. She passes Nadeshiko Kagamihara, who is sleeping in a bus stop.
It's getting into fall, and Rin has the campsite to herself. She sets up her pup tent on the beach and sits down to read a book.
At only 5C (41F) out, it's a bit chilly, and Rin reluctantly starts a campfire. (A narrator gives useful tips.)
When night falls, Nadeshiko appears, seriously freaked out. She fall asleep after biking out here and is too afraid to go home at night.
Rin gives her some food.