Slow Loop

• Ja Kanji — スローループ • Ja Romaji — Surō Rūpu • Genre — Sports (recreational fishing)

• Type — manga • Author — Maiko Uchino • Publisher — Houbunsha • Magazine — Manga Time Kirara Forward (2018-2025) Comic Fuz (2025-present) • First — September 22, 2018 • Last — present • Volumes — 11 • Volume List — #Volume list

• Type — TV series • Director — Noriaki Akitaya • Producer — * Shousei Itou • Shinpei Yamashita • Soujirou Arimizu • Kakeru Miura • Riko Nakagome • Shuka Nishimae • Writer — Yuka Yamada • Music — Takurō Iga • Studio — Connect • Licensee — Crunchyroll • Network — AT-X, Tokyo MX, SUN, KBS, TVA, BS11 • First — January 7, 2022 • Last — March 25, 2022 • Episodes — 12 • Episode List — #Episode list Slow Loop is a Japanese recreational fishing manga series by Maiko Uchino, which was serialized in Houbunsha's seinen manga magazine Manga Time Kirara Forward from September 2018 to February 2025 before moving to the Manga app Comic Fuz in February 2025. It has been collected in eleven tankōbon volumes. On February 21, 2025, it was announced the manga will be on a hiatus as author Maiko Uchino is currently undergoing treatment for breast cancer. An anime television series adaptation by Connect aired from January to March 2022.

Hiyori Yamakawa is a girl who has always felt an attachment to the ocean, a feeling that grew thanks to her late father. After her mother announces she is remarrying, Hiyori becomes nervous about having a new family and heads to the sea to process her thoughts. There, she encounters Koharu Minagi, another girl whom she teaches how to fish. Later that night, it turns out that Koharu is her stepfather's daughter, meaning she is Koharu's new stepsister. Despite Hiyori's earlier hesitation about having a new family, the two quickly become close, developing bonds through their shared experiences, such as losing a parent when they were young, and becoming closer through their interest in fishing.

• Hiyori Minagi / Hiyori Yamakawa • Rin Kusumi • The series' protagonist. Her father died three years prior to the events of the series. After her mother remarries, Koharu becomes her stepsister and lives with her. She developed an interest in fishing. • Koharu Minagi • Natsumi Hioka • Hiyori's stepsister. Her biological mother and brother died in an accident when she was young. Because she lived far from the ocean, she developed a fascination for the sea. • Koi Yoshinaga • Tomomi Mineuchi • Hiyori's childhood friend, whose father runs a fishing supplies store. • Ichika Fukumoto • Kaori Nazuka • Futaba Fukumoto • Natsumi Murakami • Aiko Ninomiya • Honoka Inoue • Kaede Miyano • Yoko Hikasa • Niji Yoshinaga • Nao Tōyama • Tora Yoshinaga • Kiyono Yasuno

Slow Loop is written and illustrated by Maiko Uchino. The series began serialization in Houbunsha's Manga Time Kirara Forward magazine on September 22, 2018.

On December 24, 2020, an anime television series adaptation was announced. The series was animated by Connect, and directed by Noriaki Akitaya, with scripts by Yuka Yamada, characters designed by Shoko Takimoto, who also served as chief animation director, and music composed by Takurō Iga. The series aired from January 7 to March 25, 2022, on AT-X and other networks. Pokapoka Ion, composed of Nao Tōyama and Kiyono Yasuno, performed the opening theme song "Yajirushi." Three ∞ Loop, composed of Rin Kusumi, Natsumi Hioka, and Tomomi Mineuchi, performed the ending theme song "Shuwa Shuwa." Funimation streamed the series outside of Asia.

Slow Loop is associated with Japan.