One Postcard Decides Whether a Manga Lives or Dies: Half a Century of Weekly Shonen Jump’s Reader Survey

Key Points

• Every issue of Weekly Shonen Jump includes a reader survey asking readers to pick the “three most fun” series in that issue. The rankings decide which series continue and which end. Sales of collected volumes aren’t taken into account.
• The system dates back to the magazine’s launch in 1968, when it couldn’t sign big-name manga artists and had to rely on newcomers. The editors needed to know every week what readers were actually reading.
• The survey favors fast-paced series with a high point in every chapter, while stories that need time to develop are more likely to be cut short. Dragon Ball’s popularity slipped too, and it recovered only after being restructured around a martial arts tournament.
• Since 2024, the digital survey has added a question asking readers to “pick three series you like,” starting to measure readers’ long-term willingness to keep reading, not just how exciting one week was.

Not long after Weekly Shonen Jump launched, the last page of one manga manuscript already had the word “End” written on it in marker. The editor in charge picked up some correction fluid and painted it out.

The manga was Otoko Ippiki Gaki Daisho, roughly “A Real Man, Boss of the Kids.” It had been meant to end at the story’s climax, but the editor decided to keep it running. The reason was simple: the postcards readers had sent back showed it had already become the most popular manga in the magazine.

At Jump, these postcards are called the reader survey. It’s not an opinion poll for the marketing department to glance at. It’s a vote that decides whether a manga gets to live. For more than half a century, the question the magazine asks readers each week has barely changed: in this issue, which three series did you find the most fun? Series near the bottom of the rankings are cancelled. Series near the top get the cover, become anime, and sell hundreds of millions of collected volumes. Dragon Ball, One Piece and Demon Slayer all survived under this question.

Why does a single postcard have so much power? The story starts with a new magazine that couldn’t get any big-name manga artists.

A new magazine that couldn’t land big names had to trust its readers

In 1968, the publisher Shueisha launched Shonen Jump, which went weekly the following year. It was a late entrant: Kodansha’s Weekly Shonen Magazine and Shogakukan’s Weekly Shonen Sunday had both been running for nearly a decade. Jump’s first issue printed only about 105,000 copies, roughly a half to a third of what its two rivals had printed for their launches.

The bigger problem was people. The well-known manga artists of the day were tied up with the two big weeklies. When Jump asked them for work, it was mostly turned away, and all it had left were newcomers who hadn’t debuted yet or had only just started. A veteran editor who once worked at Shonen Sunday described the early Jump years later as “a grubby little magazine.”

It was exactly these newcomers who saved Jump. Go Nagai’s school comedy and Hiroshi Motomiya’s Otoko Ippiki Gaki Daisho were huge hits. Less than four years after launch, Jump’s circulation passed Shonen Magazine’s, making it Japan’s top boys’ weekly.

But building on newcomers had a built-in problem. Newcomers had no past work to prove themselves, and editors had no way to tell who would be a hit. Big names could guarantee sales with their reputations; newcomers could only rely on readers paying for each issue. So Jump needed a tool that told editors every week “what readers are actually reading.”

That tool was there from the very first issue: every copy came with a survey postcard. Adding a postcard cost about one extra yen per copy, which at a print run of two million meant an extra two million yen per issue. The person who insisted on it was the founding editor-in-chief, Tadasu Nagano, whose famous line was: “Know everything about your readers, from what’s in their heads to what’s in their pockets.” To get more people to send the cards back, the survey came with a prize draw.

Soon the survey became the referee of serialization. Early on, the editorial department set a rule: if a series hadn’t picked up in popularity after ten weeks, it would end. In the Japanese manga world, a series ended early for lack of popularity is said to have been “uchikiri,” or cut off.

Twenty series, only three picks: the other seventeen get zero

What does the survey postcard ask? The answer is simpler than you’d think. The card lists numbers for every series in that issue. Readers write down “the three most fun in this issue,” choose the prize they’d like, and mail it back to Shueisha. Since 2014, digital readers have also been able to fill out an online survey in the official app.

What really decides life or death is the limit of “only three picks.” In 2021, Jump deputy editors Saito and Yuta Momiyama explained that Jump runs about 20 series at a time and readers can choose only three, so on that postcard, the other 17 effectively score zero.

That’s completely different from an ordinary satisfaction survey. A satisfaction survey asks “how many points would you give this series,” so a series that isn’t anyone’s favorite but that readers think is pretty good can still get a decent score. Jump’s survey gives “pretty good” nothing. Every week, each manga is fighting the other 19 for the three votes in each reader’s hand. What it needs isn’t to be liked, but to be chosen.

The results show up directly in which series continue. Each time the editorial department meets to launch new series, the two or three lowest-ranked series end to free up pages for the new ones. What surprises outsiders even more is that survey rankings and collected-volume sales are two separate things. Collected volumes, the books that compile a serialization, are the main source of income for both the publisher and the artist. But Momiyama says how well they sell isn’t taken into account; evaluations are based solely on survey rankings.

Why has this system worked for so many years? Saito’s answer is “objectivity.” The rules are explained to every manga artist in advance, and no editor’s personal likes or dislikes come into the decisions. Nobuhiko Horie, editor-in-chief in the 1990s, also said the survey is the most objective thing there is, and that you can tell within about three weeks whether a new series will be a hit.

How was Dragon Ball rescued after nearly falling out of the top ten?

Nowhere is the survey’s power clearer than with Dragon Ball.

At the end of 1984, Akira Toriyama began serializing Dragon Ball. He was already one of Jump’s most popular manga artists; his previous series, Dr. Slump, had run for more than four years and been adapted into an anime. You’d think someone like that would get room to develop a new series slowly.

That’s not what happened. Dragon Ball started out borrowing the setting of Journey to the West, following the boy Son Goku and the girl Bulma on an adventure to collect the Dragon Balls. After it had run for a while, its popularity kept sliding. Toriyama’s editor, Kazuhiko Torishima, recalls the sense of crisis at the time: “If this kept up it would fall below tenth place, and it looked like it would be cancelled.” Fame couldn’t save the series, because Jump’s readers were children, and children don’t look at who the author is. They “only look at whether it’s fun.”

Torishima and Toriyama spent about a week discussing what was wrong and concluded that Goku was too vague as a character. Readers couldn’t tell what the hero wanted, so they didn’t know what to hope for on his behalf. What Goku wanted, they decided, was to “get stronger,” but readers weren’t feeling it.

The revisions that followed amounted to starting over. Most of the supporting cast temporarily left the stage and the focus shifted onto Goku. A new character, the bald young monk Krillin, trained alongside Goku under the martial arts master Master Roshi, and the goal of their training was a fighting tournament where the world’s strongest gathered: the “Tenkaichi Budokai,” the World Martial Arts Tournament. This structure of fighting your way up through a competition brought the popularity back, and it became the backbone of the series for the next ten years.

But Torishima himself is actually quite cautious about the survey. He points out that the same low score can mean many things: nobody is reading the series at all, people are reading it but not responding, or it just happened to be unpopular that week. The survey can tell an editor that Dragon Ball is sinking, but not why. Translating “falling popularity” into “readers can’t see that Goku wants to get stronger” took one editor and one manga artist shut away discussing it for a whole week.

A test every week: stories that need time to develop struggle to survive

The survey’s objectivity comes at a price.

The most obvious is that slow-burning series have a hard time surviving. Readers see only a dozen or so pages a week, and the survey asks whether “this issue” was fun. A series that needs a few weeks to establish its characters and world will inevitably lose points during those weeks. Conversely, series with a high point in every chapter and a cliffhanger at every ending are the most likely to be picked. Even Horie, who called the survey “the most objective,” admits that early cancellations hurt series that need time to develop.

Over time, this scoring system pushes manga artists toward fast-paced writing packed with conflict. That so many of Jump’s hit series are built around fighting tournaments and back-to-back battles may not be just the editors’ taste, but has something to do with this weekly test.

Another problem is that the survey can only measure “who gets picked,” not “who’s quietly reading.” A series that readers think is good every week but that’s never in their top three scores just as low on the survey as a series nobody reads.

Not every publisher agrees with this approach. When Takenori Ichihara became editor-in-chief of Shonen Sunday, he said which series continue would be decided by “my own arbitrary judgment, biases and sense of beauty.”

With readers moving to phones, does the postcard still work?

The system rests on one assumption: that most readers are reading the same print magazine.

Jump peaked at the end of 1994, with a single issue printing 6.53 million copies, still the record for a manga magazine. Circulation has fallen ever since. In spring 2026, average circulation was 985,000, dropping below one million for the first time.

Readers haven’t disappeared; they’ve moved to their phones. Shonen Jump+, a manga app launched in 2014, passed ten million downloads by 2019. But the postcard can’t simply be carried over to phones. Series on the app update separately, and readers don’t go through an entire magazine at once, so “pick three out of twenty” doesn’t really exist there. Jump+ looks at data such as page views instead, but Momiyama admits frankly that there’s a huge amount of data, down to which page readers left on, and yet “which metrics to look at” has become harder and more confusing to figure out.

How long can the print survey hold up? In 2021, Momiyama estimated that if Jump’s circulation fell to around 50,000, the current system would probably stop working. There’s still a long way from 985,000 to 50,000, but fewer and fewer people are mailing postcards, and the digital survey’s share is bound to grow.

Beyond “most fun,” Jump finally asked about “favorite”

In September 2024, in issue 42, Jump’s digital survey quietly added a required field: pick three series you “like.”

The two words sound similar, but for a serialized manga they can mean two different fates. “Most fun this week” measures one week’s reading experience: did this chapter get your heart racing? “Like” measures something closer to a relationship: regardless of whether this week was exciting, which series do you want to keep reading?

The editorial department hasn’t publicly explained why it added the question, but the difference between the two may be the answer. In the print era, readers went through the whole magazine every week, so “most fun this week,” added up over time, roughly equaled “most popular.” But as readers spread out across the app, collected volumes and anime, a series’ value depends more and more on how many people are willing to follow it long-term and buy the books, not just on how exciting the climax was in a given week.

I think this question exposes what the old survey really was. For more than fifty years, Jump’s survey never actually measured whether readers liked a series. It measured something narrower and more brutal: among this week’s twenty series, was there one you simply had to pick? Because the question was so narrow, it pushed out a whole crop of sharply paced manga trying to win every week, and let a magazine that couldn’t get big-name artists climb to 6.53 million copies on newcomers alone. And because it was so narrow, series that need time to develop were always at a disadvantage on the postcard.

Half a century ago, an editor painted out the word “End” on a manuscript because readers still wanted more. This new question is the first time Jump has acknowledged that readers may want to keep reading a series even if it isn’t the most fun one this week. Manga that slowly build readers’ attachment finally have a vote they can receive too.

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Notes

1. The ranking crisis in Dragon Ball’s early serialization comes from Kazuhiko Torishima’s own recollections. No publicly available original ranking data has been found.
2. Jump’s editorial department has not publicly explained why it added the “three series you like” question in 2024. The final section is the author’s inference.
3. “6.53 million copies” is the print run of the combined issue 3–4 of 1995 (released December 1994). “985,000 copies” is the average circulation from April to June 2026.

References

1. Bunshun Online｜伊藤和弘｜Articles on Shonen Jump’s early years and “survey supremacy” (3 pages)｜2022-08-13 (first-issue sales compared with rivals, the “grubby little magazine” comment, reaching No. 1 in four years, survey postcards and their cost from the first issue, the prize draw, the ten-week rule, the “End” painted out on the Otoko Ippiki Gaki Daisho manuscript)
2. Bungeishunju｜後藤広喜「長野規 ジャンプの時代」｜2024-12-09 (Tadasu Nagano’s emphasis on reader research, “from what’s in their heads to what’s in their pockets”)
3. Gendai Business｜飯田一史｜Interview with Weekly Shonen Jump deputy editor 齊藤優 and Shonen Jump+ deputy editor 籾山悠太｜2021-04-06 (only three picks, the bottom two or three ending at new-series meetings, no personal preferences in decisions, Jump+ looking at page views, the system failing at around 50,000 copies)
4. Gendai Business｜飯田一史 (same interview series)｜2021-04 (rankings of about 20 series, collected-volume sales not considered)
5. ITmedia Business Online｜Kazuhiko Torishima interview, part 2: “How we found Dragon Ball”｜2019-03-29 (Dragon Ball’s falling popularity, Goku’s vague character, Krillin and the World Martial Arts Tournament, “only whether it’s fun”)
6. Denfaminicogamer｜Kazuhiko Torishima long interview (the many possible meanings of a low score)
7. Anime News Network｜Former Shonen Jump Editor-in-Chief: Readers Can Decide Manga Cancellation in 1st 3 Weeks｜2017-09-26 (Nobuhiko Horie: you can tell in three weeks, the survey is the most objective)
8. Gendai Business｜Interview with Shonen Jump+’s Yuta Momiyama｜2019-05-20 (Jump+ downloads, the complexity of digital metrics)
9. Kumamoto Nichinichi Shimbun (Kyodo)｜少年ジャンプ、100万部割れ｜2026-08-06 (average of 985,000 for April–June 2026, readers moving to Jump+)
10. nippon.com｜「週刊少年ジャンプ」100万部割れ 漫画流通の主役は電子書籍に (the 6.53 million record)
11. Jump Otona｜【ん？】週刊少年ジャンプのアンケートに新たな項目が｜2025-07-22 (“three series you like” added to the digital survey from issue 42 of 2024)
12. Shonen Jump News (X)｜Digital survey adds top-three picks for both “like” and “most fun”｜2024-09
13. Magmix｜ジャンプは本当に「アンケート至上主義」なのか？ ライバル誌と比較｜2021-06-24 (Takenori Ichihara’s “arbitrary judgment, biases and sense of beauty”)