Rin Shima (Haruka Fukuhara), a high school girl who enjoys solo camp, visited Shizuoka at New Year's Eve, but due to the freezing of the road surface, she couldn't go home until the 3rd. Meanwhile, she is invited by Nadeshiko (Yuno Ohara) to her grandmother's house in her Hamamatsu. When she arrives, there is also her childhood friend Ayano (Anna Ishii), and the three of them are excited about her old tales and recent camp stories. Nadeshiko reveals this unexpected past! ?? And at night, the three of us will go to the Nadeshiko Memories Observatory ...