Jump Magazine apologizes: the issue containing the final of Blue Box and a One Piece card is unavailable

Shueisha acknowledges massive shortages on Weekly Shonen Jump issue #34: disappointed readers, retailers out of stock. The combination "end of Blue Box + exclusive One Piece card" shattered the print run.

Warning spoilers Blue Box: this article discusses the end of the manga without revealing specific events.

What's happening

Anime News Network reports that Shueisha has issued an apology for issue 34 of the Weekly Shōnen Jump (2026). Two elements caused demand to skyrocket:

1. The publication of the final chapter of Blue Box (青のハコ, Ao no Hako), the sports-romance manga by Kōji Miura serialized since 2021
2. A One Piece collectible card included with the issue, in collaboration with Bandai (Card Game)

Result: shelves emptied as soon as convenience stores opened, reprints announced but late, resale market heating up on Mercari and Yahoo! Auctions Japan (メルカリ / ヤフオク).

Blue Box, a phenomenon that took five years to establish

Blue Box wasn't an announced hit when it started. Miura, then relatively unknown, proposed a sports romance badminton × basketball with a soft tone, very different from the action shōnen that dominates Jump. The series slowly established itself - then exploded in 2024-2025 with the animated adaptation by Telecom Animation Film (historic studio founded in 1975, subsidiary of TMS Entertainment), broadcast on Netflix.

For the readership, the end of a manga so well-established is an event - comparable, to a lesser extent, to what the finales of Naruto, Bleach, or more recently Jujutsu Kaisen represented. That Jump chose to accompany it with an exclusive One Piece card is a marketing calculation that clearly misjudged the demand.

The real issue: Jump facing its logistical limits

This isn't the first time Shueisha has been overwhelmed by an event issue. In 2020, the last chapter of Kimetsu no Yaiba (Demon Slayer) caused the same phenomenon. In 2022, the return of Hunter × Hunter after a four-year hiatus exhausted stocks in a few hours.

The root of the problem is structural: the print run of the Weekly Shōnen Jump has dropped from approximately 6 million copies per week in the 1990s to 1.2-1.4 million today (figures from Japan Magazine Publishers Association, 2025 average). For an event issue, adjusting the print run is risky: overproducing means the risk of pulping; underproducing means stockouts.

The alternative exists: Shueisha's Shonen Jump+ app allows reading chapters digitally, and the Manga Plus service (viz.com) offers a free international version. For the finale of Blue Box, the digital chapter was available upon release - which didn't prevent the rush for the physical copy, proof that the symbolic value of the physical issue remains intact.

Our take

The combination of the final manga chapter + exclusive card was predictable as a catalyst. That Shueisha didn't anticipate the demand is questionable - unless the calculation was intentional (creating scarcity for the event). We lean towards an honest underestimation: Blue Box, despite its success, wasn't in the magazine's top 5, and Shueisha probably didn't project that its finale would trigger such fervor.

For collectors, the matter is already settled: issues are circulating on second-hand platforms at prices multiplied by 3 to 5. Shueisha has promised additional print runs. The message to fans remains bitter, however: in the transition to all-digital, the magazine-object retains an emotional value that the publisher failed to honor this week.

Verdict: Blue Box deserves better than this chaotic ending. See you in tankōbon (bound volume) - the final volume should be released in the coming weeks, and there, the print runs should follow.