Kouji Miura's Ao no Hako (Blue Box) manga has concluded with chapter 250 in the 33rd issue of Weekly Shounen Jump magazine on Monday, after a 5-year serialization. Miura originally drew the sports romance manga as a one-shot in Weekly Shounen Jump in August 2020. The manga began serializing in the same magazine the following April. Shueisha published the 26th volume on July 3. The 27th volume is scheduled for release on October 2, and the 28th and final volume will go on sale on December 4...