Ahiru no Sora (あひるの空) is a Japanese basketball-themed manga series written and illustrated by Takeshi Hinata. It has been serialized in Kodansha's manga magazine Weekly Shōnen Magazine since December 2003, with its chapters collected in 51 volumes as of June 2019. A 50-episode anime television series adaptation produced by Diomedéa was broadcast from October 2019 to September 2020.
Plot
Sora Kurumatani made a promise to his mother, "I will dominate my first high school tournament". But as he joins the basketball club after entering Kuzuryū High School, he finds out that it's become a stomping ground for delinquents. A place where everything but basketball is done, but with Sora's genuine zeal for basketball, things begin to stir.