The series' protagonist. Her father died three years prior to the events of the series. After her mother remarries she starts living with Koharu. She developed an interest in fishing.
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.
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.[4]
On December 24, 2020, an anime television series adaptation was announced.[6] 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.[1] The series aired from January 7 to March 25, 2022, on AT-X and other networks.[7][8] 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."[2]Funimation licensed the series outside of Asia.[9]