Gunjō ni Siren

Gunjō ni Siren (群青にサイレン) is a Japanese baseball-themed manga series written and illustrated by Mikan Momokuri. It was serialized in Shueisha's josei manga magazine You from July 2015 to October 2018, until the magazine ceased its publication. It was later serialized on Shueisha's online platform Shōnen Jump+ from February 2019 to August 2020. Its chapters were collected in 12 tankōbon volumes.

Publication
Written and illustrated by Mikan Momokuri, Gunjō ni Siren was serialized in serialized in Shueisha's jjosei manga magazine You from July 15, 2015, to October 15, 2018, until the magazine ceased its publication. It was later serialized on Shueisha's online platform Shōnen Jump+ from February 2, 2019, to August 3, 2020. Shueisha collected its chapters in 12 tankōbon volumes, released from November 25, 2020, to October 2, 2020.

Reception
The series ranked third on AnimeJapan's "Most Wanted Anime Adaptation" poll in 2019.