is a 2022 Japanese animated coming-of-age fantasy adventure comedy-drama film directed by Hiroyasu Ishida from a screenplay he co-wrote with Hayashi Mori and Minaka Sakamoto. Produced by Studio Colorido, the film was released simultaneously in Japanese theaters and on Netflix on September 16, 2022.
Kosuke Kumagaya and Natsume Tonai are 11-year-olds who grew up like siblings. The relationship between the two began to be strained after the death of Kosuke's grandfather, Yasuji. One day during the summer vacation, Kosuke and his classmates, Taishi, Yuzuru, Reina, and Juri, sneak into the "ghost housing complex" that has been slated for demolition. The housing complex was also a house full of memories where Kosuke and Natsume grew up. Kosuke unexpectedly encounters Natsume there and hears about the existence of a mysterious boy named Noppo in the complex. The group argues and heavy rain ensues. After the rain stops, the housing complex is suddenly drifting in the middle of the ocean.
The film was first announced by Netflix in September 2021. It was announced to be produced by Studio Colorido and directed by Hiroyasu Ishida, with scripts by Ishida, as well as Hayashi Mori andàMinaka Sakamoto.àAkihiro Nagae designed the characters andàUmitarà  Abe composed the music. Zutomayo performed the film's theme song, , as well as the insert song . The film was released on September 16, 2022, on Netflix and in Japanese theaters.