A group of strangers come together to work on creating the greatest anime series ever.
Haru and Reo perform as musical duo Haru-Reo. With their indie music, they suddenly get popular. Even with their newfound success, they decide to disband the duo. Haru-Reo go on one last tour together. Their roadie Shima goes with the girls on the tour.
Kouta Noda is a 2nd grade high school student at a village. A transfer student, Tendo, from Tokyo becomes Kouta Noda’s classmate. Tendo has a mysterious mood. The two teens becomes friends and spend time having fun, but, one day, one of Kouta's friends disappears. There is a local village legend that one kid will disappear every 100 years.
The first-person protagonist is a 27-year-old freelance writer who returns to her hometown from Tokyo, and she gets together with high school friend Satsuki and cameraman Suga to see Shiina, who they all admired in high school. Along the way, vivid memories from high school replay in the protagonist's mind.