is a Japanese light novel series written by Akiko Abe and illustrated by syo5. It began publication by Shueisha under their Shueisha Orange Bunko imprint in October 2017, with three volumes being released as of June 2026. A manga adaptation of the first novel with art by Haruka Chino has been serialized online via Shueisha's Tonari no Young Jump manga website since August 2025 and has been collected in a single volume. An anime film adaptation of the first novel produced by TMS Entertainment is scheduled to premiere in Japan in October 2026.
Plot Kazuki Tsukigase, a high school boy, transfers to Sakijima High School on a remote island in order to escape his past. The island is home to a mysterious location known as the "Cove of Spiriting Away," where people are rumored to disappear. Early one summer, Kazuki discovers an unconscious girl lying in the cove and brings her to a local hospital. When she awakens, she has no memory of her identity or origins, except for repeatedly murmuring the year "1974." Kazuki finds her name is Nanao, and he becomes involved in uncovering the truth behind Nanao's past and the island's legends.
Characters
Media Light novels
Manga A manga adaptation of the first novel illustrated by Haruka Chino began serialization on Shueisha's Tonari no Young Jump manga website on August 6, 2025. The manga's chapters have been compiled into a single volume as of February 2026.
Anime film An anime film adaptation of the first novel was announced during Shochiku's 2026–2027 lineup announcement of films on January 27, 2026. The film is produced by TMS Entertainment and directed by Junichi Wada, from a screenplay written by Sayaka Kuwamura, characters designed by Hechima, and music composed by Koji Nakamura. It is set to be released in Japan by Shochiku on October 9, 2026. The insert song is "Balsam", and the theme song is "Olive", both performed by Tota.
References
External links