群青にサイレン (Series) favorite_border

[DeepL Translation - needs review] Volume 1 Introduction: Shuji and Sora are cousins. Shuji, who once quit baseball because of Sora, meets Sora again at the entrance ceremony of his high school. Seeing Sora's small size, Shuji thinks "I can beat him now" and joins the baseball team...

(Translator: DeepL)