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For international anime, manga, and pop-culture collectors, autumn in Tokyo brings one of the most anticipated events of the year: Mandarake’s annual "大まん祭" (Daimansai). Known globally as a powerhouse of secondhand otaku goods, Mandarake hosts this massive festival to bring together the rarest items, the most passionate creators, and die-hard collectors from around the world.
If you are planning a trip to Tokyo in late November 2026, you are in for an unprecedented treat. While Daimansai is a beloved, long-running annual tradition featuring vintage toys, dōjinshi (self-published works), and indie soft vinyl figures, the 2026 edition has captured the attention of the global trading card community thanks to a highly publicized addition: a colossal Pokémon merchandise and TCG pop-up promising over 100,000 cards.
Because information about this event is split across different official Mandarake platforms—and because event hours and rules vary depending on which part of the festival you are attending—we have built this exhaustive, massive guide to Mandarake Daimansai 2026 at Akihabara UDX.
Whether you are hunting for highly graded Charizard cards, hunting down obscure 1980s anime production materials, or venturing into the colorful world of indie sofubi (soft vinyl), this guide breaks down exactly what Daimansai is, how to navigate the differing event schedules, where to shop in and around Tokyo for better deals, and how to survive the ultimate collector’s weekend.
Part 1: What is Mandarake DAIMANSAI? The Annual Collector’s Apex
Before diving into the Pokémon frenzy of the 2026 edition, it is vital to understand what Daimansai (大まん祭) actually is.
Mandarake is arguably the most famous secondhand otaku retailer in the world, having started as a tiny used manga shop in Nakano Broadway in 1980. Today, it operates multi-story complexes across Japan. Daimansai is Mandarake Inc.’s very own annual collector’s festival. Confirmed to have run in previous years (including 2024 and 2025), Daimansai traditionally takes place every November at the prestigious Akihabara UDX building in Tokyo.
Because it is a recurring annual event, Daimansai has a distinct, established structure. It is not just a standard store sale; it is a multi-day convention encompassing a flea market, independent creator exhibitions, and massive curated sales of Mandarake’s most guarded inventory. Even after the 2026 dates pass, Daimansai will continue to be a staple of the November Akihabara calendar.
The core of the event focuses on highly niche, intensely passionate collector subcultures:
- Archival Anime & Manga: Production cels, original scripts, and vintage magazines.
- Independent Creators: Indie sticker artists, zine makers, and soft vinyl (sofubi) sculptors.
- Vintage Toys: Die-cast robots, retro tokusatsu goods, and rare promotional items.
If you are planning future trips to Japan, checking the Mandarake event calendar for Daimansai’s November dates should be a top priority.
Part 2: The Core Sub-Events of DAIMANSAI 2026 (Official Website Details)
For the 2026 edition, Mandarake’s official event website (https://www.mandarake.co.jp/dir/daimansai2026/) outlines the core structure of the festival.
According to the official site (as of mid-October 2026), Daimansai 2026 will run over three days: November 21 (Saturday), November 22 (Sunday), and November 23 (Monday, which is a national holiday in Japan marked "月・祝").
Under the umbrella of Daimansai, Mandarake hosts four distinct, ticketed or open sub-events. It is critical to note that each of these four sub-events operates on specific days and has its own designated hours of 11:00 to 16:00 (where listed).
Day 1: Saturday, November 21, 2026 (11:00 – 16:00)
1. フリーマーケット 未知しるべ (Flea Market "Michishirube") Described by Mandarake as a "new-concept used-book market fusing fortune-telling and a book market," Michishirube is a fascinating departure from standard anime flea markets. It blends the esoteric and the literary, offering a space where visitors can browse rare texts, vintage books, and potentially participate in fortune-telling experiences.
2. 即売会 資料性博覧会19 (Sales Event "Shiryōsei Hakurankai 19" / Document Fair 19) For hardcore anime historians and dōjinshi collectors, this is the main event. "Shiryōsei Hakurankai" translates roughly to "Documentary/Archival Expo." This is a specialized sales event gathering highly research-oriented, self-published works. Unlike standard dōjinshi conventions (like Comiket) which focus heavily on fan-fiction and fan-art, this expo focuses on deep-dive research. You will find self-published books cataloging 1970s toy variations, architectural studies of anime backgrounds, detailed histories of obscure game consoles, and meticulous archives of retro pop culture.
Day 2: Sunday, November 22, 2026 (11:00 – 16:00)
3. 即売会 第11回 さん家祭り (Sales Event, 11th "San-ka Matsuri") This event is dedicated entirely to sticker and trading card art, heavily inspired by the famous "Bikkuriman" (surprise man) seal phenomenon that swept Japan in the 1980s. Independent artists create intricate, often holographic, 48mm x 48mm square stickers featuring original fantasy and sci-fi characters. "San-ka Matsuri" gathers the best of these indie sticker makers, making it a goldmine for collectors of Japanese omake (bonus) seals.
Day 3: Monday, November 23, 2026 (National Holiday)
4. 即売会 第九回創作ソフビ決起集会 (Sales Event, 9th "Creative Sofubi Rally") Hours not specified on the official core page as of writing. Sofubi (soft vinyl) figures have exploded in global popularity, with independent Japanese creators leading the charge. The "Creative Sofubi Rally" gathers elite sofubi makers and artists from both Japan and overseas. This is where collectors line up for highly limited, hand-painted kaiju, monsters, and original character figures.
Crucial Schedule Note for Tourists: As of our check date in mid-October 2026 (about five weeks before the event), the official site’s dedicated "会場販売情報" (on-site sales information) and "スケジュール" (schedule) sub-pages were not yet fully live, redirecting back to the main listing. Based on patterns from the 2025 edition, Mandarake typically publishes the granular, hour-by-hour schedule and queue information roughly a week or two before the event. Visitors must check the official Daimansai 2026 site or their official X (Twitter) account @mandarake_fes closer to late November for the finalized entry procedures and exact timing for Day 3.
Part 3: The 2026 Pokémon Pop-Up (Official Instagram Details)
While the core Daimansai sub-events celebrate niche underground collecting, Mandarake has prepared a colossal, mainstream blockbuster for 2026.
Separately from the main event website, Mandarake announced a massive Pokémon-specific pop-up via their official, verified English-language Instagram account (@mandarake_en). This announcement was made via a promotional poster and caption shortly before mid-October 2026.
This pop-up is framed specifically as the highlight of the 2026 event, and travelers should not assume a Pokémon sale of this magnitude is a guaranteed annual fixture for future Daimansai festivals.
"The World's Largest Pokémon Sales Event"
The Japanese text on the official promotional poster proudly proclaims: "世界最大のポケモン販売イベント開催" (World's largest Pokémon sales event held).
Here are the specific, unblended details provided exclusively by the official Instagram poster and caption:
- Venue: 秋葉原UDX4F 物販エリア (Akihabara UDX, 4th Floor, Retail/Sales Area).
- Admission: 入場無料 (Free Admission).
- Dates & Hours on Poster: 11月21日(土)〜23日(月) 11:00〜17:00 (Saturday, November 21 through Monday, November 23, 11:00 to 17:00).
- Important Discrepancy Note: Notice that the Instagram poster explicitly lists the operating hours as 11:00 to 17:00, giving it a later closing time than the 11:00 to 16:00 schedule listed for the four main dōjin/creator sub-events on Mandarake's core website. When planning your day, treat the Pokémon pop-up as running until 5:00 PM, but expect the indie halls to start closing up at 4:00 PM.
- Inventory Scale: The headline claim on the poster states that over 100,000 Pokémon cards will be for sale.
- Merchandise Types: The poster lists: "Cards, figures, plush toys, goods, posters, manga, dōjinshi, and more." The accompanying promotional image showcases a massive variety of eras and items, including various character plushies (like Pikachu and Eevee variants), vintage figures, and high-end trading cards.
The English caption from @mandarake_en reads:
"DAIMANSAI 2026 ✨ Pokémon Pop-up Event ‼️ A wide variety of Pokémon treasures filled throughout the venue‼️ Cards, toys, goods, books, poster and more‼️ A huge range of genres will be available. Held on the Akihabara UDX 4F on November 21st‼️ Visit our website for additional details‼️"
(Note: While the English caption only explicitly mentions November 21st, the Japanese text printed on the poster graphic itself clearly states the November 21-23 date range.)
Queue and Entry Warning: Do Not Go Unprepared
While the Instagram poster explicitly states "Free Admission," you must not assume this means you can just casually stroll in at 11:00 AM on Saturday without waiting.
In previous years (such as the 2025 edition), high-demand on-site sales at Daimansai utilized a strictly enforced lottery and numbered-ticket queue system to prevent stampedes and ensure fair access to rare items. Because the Pokémon TCG market is incredibly aggressive, it is highly probable that Mandarake will implement a digital or physical lottery system for entry into the Pokémon pop-up area, at least for the morning rushes.
Actionable Advice: We cannot state definitively what the 2026 entry rules are yet, because they have not been published on the official event.html page. You must monitor the official website (mandarake.co.jp/dir/daimansai2026/) and the @mandarake_fes X (Twitter) account in the two weeks leading up to November 21st. Look for keywords like 整理券 (seiriken / numbered ticket) or 抽選 (chūsen / lottery). If a lottery is required, failing to register in advance may mean you cannot enter the Pokémon area on Day 1.
For more insights on how to secure cheap cards during your trip, check out our guide: Pokémon Cards Near Me: 10 Cheapest Akihabara Shops (2026).
Part 4: Venue Guide – Navigating Akihabara UDX
The venue for DAIMANSAI 2026 is Akihabara UDX, one of the most prominent modern landmarks in the district. Unlike the cramped, narrow aisles of typical Akihabara hobby shops, UDX is a spacious, modern convention and office complex.
Location and Access
Akihabara UDX is located immediately adjacent to JR Akihabara Station.
- From JR Akihabara Station: Take the Electric Town Exit (電気街口). Walk straight out of the station to your right, and you will immediately see a large pedestrian bridge/walkway leading directly up to the second floor of the massive glass-and-steel UDX building. The walk takes roughly 2 minutes.
- Finding the 4th Floor: Once inside the UDX building (you will likely enter on the 2nd-floor pedestrian level where the restaurants are), look for the escalators or convention elevators. Daimansai is held in the event spaces (UDX Gallery/Next) on the 4th Floor.
Food and Facilities at UDX
One of the best parts about Daimansai being held at UDX is the "Akiba Ichi" restaurant floor located on the lower levels (1F, 2F, and 3F) of the same building. If you are exhausted after browsing 100,000 Pokémon cards, you don't need to wander far for food. The building features excellent tonkatsu, sushi, and izakaya options. For a broader list of local dining, read our Best Restaurants in Akihabara 2026 | Must-Try After Anime Shopping guide.
Part 5: Tourist Preparation & Survival Guide for Daimansai
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Attending a massive Tokyo collector’s event requires some logistical foresight, especially as an international tourist. Here is how to prepare for the November 21-23 weekend.
1. Payment Methods: Cash vs. Card
While Mandarake's permanent retail stores universally accept major credit cards (Visa, Mastercard, Amex), pop-up events and dōjinshi (independent creator) sales are a different beast.
- The Pokémon Pop-Up: Because this is operated directly by Mandarake staff in the 4F retail area, credit cards will almost certainly be accepted for high-end TCG purchases.
- The Creator Sub-Events (Michishirube, San-ka Matsuri, Sofubi Rally, etc.): These booths are run by independent artists and small circles. Cash is absolutely mandatory. Do not try to pay for a 1,000 yen indie zine with a credit card. Bring plenty of 1,000 yen bills and 100/500 yen coins. For a deeper breakdown of Tokyo’s currency landscape, see Cash vs Card in Japan 2026: How Much Cash Do You Need?.
2. Transportation & IC Cards
Akihabara is served by the JR Yamanote, Keihin-Tohoku, and Chuo-Sobu lines, as well as the Tokyo Metro Hibiya Line and Tsukuba Express. Navigating Tokyo requires a transit card. If you are arriving in 2026, be sure to read our up-to-date guide: What is the Best IC Card for Tourists in Japan 2026? | Suica vs Pasmo vs ICOCA to ensure you have the right contactless card for seamless travel to the event.
3. Securing Accommodation
November is peak autumn foliage season in Tokyo, making it one of the most expensive and crowded times of the year to visit. If you want to be first in line for the Daimansai Pokémon sale on Saturday morning, staying within walking distance of UDX is a massive advantage. Book your rooms early. For recommendations, consult our Best Hotels Near Akihabara 2026 | Value Location Convenience list.
4. Shipping Your Haul
If you buy too many cards, plushies, or heavy art books at Daimansai, you might not have room in your suitcase. Consider packing an extra foldable duffel. Additionally, if you need extra supplies (like card sleeves, top loaders, or bubble wrap) delivered right to your hotel before the event, check out our guide on How to Order From Amazon Japan Before Your Trip and Ship It to Your Hotel (2026 Guide).
Part 6: The Ultimate Tokyo TCG & Retro Collectibles Shopping Guide (Beyond the Event)
While Daimansai 2026 runs strictly from November 21 to 23, chances are you are in Tokyo for a longer period. If the 100,000 cards at the UDX pop-up somehow aren't enough, or if you strike out on the entry lottery, Tokyo is littered with incredible permanent stores for Pokémon cards, retro games, and anime merchandise.
As an expert travel rule of thumb: Akihabara is fantastic for convenience and density, but it is heavily marked up for tourists. To find the real deals, you need to step slightly out of the Akihabara bubble and visit suburban thrift hubs like Hachioji and Machida.
Here are the top locations you must visit during your 2026 trip, complete with access instructions and exact map locations.
1. Mandarake Complex (Akihabara)
If you missed Daimansai, this is Mandarake’s flagship 8-story black tower in Akihabara. The second floor usually houses animation cels and scripts, while the card and seal (sticker) sections are on the upper floors.
- Access: A 5-minute walk from JR Akihabara Station Electric Town Exit.
- Hours: Typically 12:00 PM to 8:00 PM daily.
2. Card Rush (Akihabara Stores)
Card Rush operates multiple tiny, densely packed shops in Akihabara. They are highly favored by competitive TCG players and collectors because their pricing is fiercely market-accurate, often undercutting tourist-trap stores. They use an automated tablet ordering system, making it easy for foreigners to buy singles without speaking fluent Japanese.
- Access: Multiple locations near JR Akihabara Station (usually a 2-3 minute walk from the Electric Town Exit).
3. Surugaya Akihabara (Trading Card & Board Game Specialty Store)
Surugaya is Mandarake’s biggest rival in the secondhand space. Their dedicated Trading Card building in Akihabara is fantastic for both sealed product (when available) and digging through massive bins of ungraded, loose singles.
- Access: A 6-minute walk from the Akihabara Electric Town Exit, heading towards Suehirocho Station.
4. Bookoff Super Bazaar (Hachioji Minamino) - The Suburban Secret
If you want to escape the Akihabara tourist markups and experience true Japanese thrift hunting, you must travel to a "Super Bazaar." These massive, warehouse-sized Bookoffs are located in the suburbs. The Hachioji Minamino location is legendary for its massive toy, TCG, and retro game sections, often priced 20-40% cheaper than Tokyo center.
- Access: From Shinjuku Station, take the JR Chuo Line to Hachioji Station, then transfer to the Yokohama Line and get off at Hachioji-Minamino Station. The massive store is about a 5-minute walk from the station. The total trip takes about 55 minutes from Shinjuku.
5. Bookoff Super Bazaar (Machida Chuo-dori)
Another phenomenal suburban destination. Machida is known as the "Akihabara of the West" (west of central Tokyo, that is). This Bookoff Super Bazaar is multi-storied and has a dizzying array of loose Pokémon cards, binder singles, and cheap anime plushies that perfectly complement what you might find at Daimansai.
- Access: From Shinjuku Station, take the Odakyu Line express train directly to Machida Station (about 35 minutes). The store is an 8-minute walk from the central station exits.
6. Super Potato (Akihabara)
While not a card shop, no collector’s trip to Akihabara is complete without checking out Super Potato for retro video games. If Daimansai gets you in the mood for 1990s nostalgia, this is the spot to find Game Boys, original Pokémon cartridges, and Super Famicom classics. For deeper insights on retro game pricing, read our guide: Akihabara Retro Game Collecting 2026 | Famicom, Super Famicom & N64 Used Prices & Shops.
- Access: A 4-minute walk from Akihabara Station Electric Town Exit, tucked down a side alley. Look for the Pac-Man and Mario signage.
7. Hobby Off (Ueno / Okachimachi)
Just one stop north of Akihabara lies the Ueno/Okachimachi area. This Hobby Off is slightly less picked-over by international tourists than the shops squarely in Akihabara, offering great deals on used soft vinyl figures, Gundam models, and trading cards.
- Access: Take the JR Yamanote line to Okachimachi Station. The store is about a 3-minute walk south, nestled in the shopping arcades beneath the train tracks.
Part 7: Final Tips and Conclusion
Mandarake Daimansai is a breathtaking celebration of Japanese pop-culture archiving. Whether you are coming to browse the profound depths of the "Shiryōsei Hakurankai 19" dōjinshi market, or you are flying halfway across the world specifically for the headline 100,000+ Pokémon card pop-up on the 4th floor of Akihabara UDX, November 21-23, 2026, promises to be a legendary weekend.
Remember the golden rules for this event:
- Keep the Hours Straight: The Pokémon Pop-up runs from 11:00 to 17:00 (per the official Instagram), while the core creator sub-events (Flea Market, Sofubi, San-ka Matsuri) run from 11:00 to 16:00 (per the official website).
- Verify Entry Rules: As of mid-October 2026, official queue or lottery details for the Pokémon pop-up have not been released. Do not assume you can walk straight in on Saturday morning. Check the official event page (
mandarake.co.jp/dir/daimansai2026/) and X account (@mandarake_fes) in November for the final verdict. - Bring Cash for Creators, Cards for Retail: Be prepared with physical yen if you want to buy independent art and zines. Use our Klook Shopping Coupons guide for other travel discounts to save money for your collecting budget.
The combination of Mandarake's unparalleled curatorial power and the current global fever for Pokémon TCG means Daimansai 2026 will be an intense, rewarding experience. Plan your routes, secure your IC card, take a side-trip to the suburban Bookoffs in Hachioji for extra deals, and prepare to discover treasures that you won't find anywhere else on earth. Happy hunting!
FAQ
Q: What are the dates for Mandarake Daimansai 2026?
Mandarake Daimansai 2026 runs over a three-day weekend from Saturday, November 21 to Monday, November 23, 2026.
Q: Where is Mandarake Daimansai 2026 held?
The event is held at the Akihabara UDX building in Tokyo, specifically in the 4th-floor event spaces and retail areas.
Q: What are the operating hours for the 2026 Pokemon pop-up?
According to the official Instagram poster, the massive Pokemon pop-up event runs from 11:00 AM to 5:00 PM (17:00) during the festival days.
Q: Do I need a ticket to enter the Pokemon card pop-up at Daimansai?
While admission is listed as free, Mandarake often uses a numbered ticket or lottery system for high-demand events to prevent stampedes. Visitors should check the official website closer to the event dates for exact entry rules.
Q: Can I use a credit card at Mandarake Daimansai?
Credit cards are likely accepted at the official Mandarake retail pop-up for Pokemon goods, but you must bring cash (yen) if you plan to buy from independent creators at the dojinshi, sticker, or sofubi booths.
Q: What else is sold at Daimansai besides Pokemon cards?
The festival features rare archival anime cels, vintage toys, independent soft vinyl (sofubi) figures, self-published research dojinshi, and retro stickers.