Choosing between an OP-17 booster box and a case starts with what Bandai actually prints, and for the Japanese set released on August 22, 2026 that is less than most buyers assume. The official pages give the pack price, the cards per pack and the card list; they do not give a box price, a boxes-per-case figure or a case price. What can be dated is the market: as of October 2, 2026, SNKRDUNK’s lowest ask for an OP-17 box is ¥11,999 (~$78).
Both the regular OP-17 box and the OP-17 Damaged Box are sold out at the time of this update — restock requests go through Quick Order.
A case is a carton of booster boxes, and Bandai’s OP-17 pages print neither the number of boxes in it nor a box or case price. The official box render shows 24 packs per box (an image, not page text), and a Japanese pack holds 6 cards at ¥240 tax included; 24 × ¥240 = ¥5,760 is arithmetic, not a Bandai-printed box price. Cases suit resellers and buyers holding sealed at scale, while a single box suits almost everyone else.
- Store state re-checked: no OP-17 product is buyable at the time of this update; case and multi-case requests go through Quick Order or the wholesale channel.
- Market ask re-dated: SNKRDUNK’s lowest ask for an OP-17 box is ¥11,999 (~$78) as of October 2, 2026, and a new Top 10 table by ask is added.
- Unofficial figures removed: Bandai prints no boxes-per-case figure, no box price and no case price for OP-17, and publishes no pull rates, so no such figures appear here.
USD figures convert at ¥154/USD, approximate. SNKRDUNK figures are lowest asking prices on the date shown, never confirmed sales. The October 6, 2026 update covers our store listings and prices only; the other facts in this article were last checked on October 2, 2026.
What an OP-17 Case Is and What Bandai Prints
Start with the unit everyone understands: the pack. A Japanese OP-17 pack costs ¥240 tax included and contains 6 random cards from a pool printed as 131 card types plus 4 (the four DON!! cards), per onepiece-cardgame.com as of October 2, 2026. The rest of the sealed hierarchy is where the official pages go quiet:
| Unit | What Bandai prints | Status |
|---|---|---|
| Pack | 6 cards, ¥240 tax included (JP page) | Printed as text |
| Booster box | The official box render shows 24 packs per box | Image only, not page text; no box price printed |
| Box price | 24 × ¥240 = ¥5,760 | Arithmetic from the render and the pack price, not a printed MSRP |
| Case | Boxes per case and case price | Not printed on the Japanese or English page, or on the render |
Because the case row is empty, every box-count or case-price figure you see attached to OP-17 comes from a seller, not from Bandai. Confirm the box count in writing before you compare any case offer, and measure it against the box asks in the market check rather than against an assumed MSRP.
A few practical notes on what “case” means, because the word gets used loosely:
- A case is a factory carton, not a display item. When a shop sells you a “sealed case,” you are buying boxes still in their unopened carton rather than boxes picked over, opened or reassembled. The count inside is the seller’s statement, so ask for it.
- Case-sealed matters to some buyers and not to others. If you are opening everything, the same number of loose boxes and one sealed case are the same product. If you are holding sealed long term or reselling, an unopened factory carton is the cleaner unit of provenance.
One more piece of context: in Japan the set is searched by its Japanese name, 「世界最強の戦士」, rather than by the “OP-17” code most overseas buyers use. If you are cross-checking Japanese sources or listings, that is the name to look for.
Why Case Demand Concentrates Around a Release
Case questions cluster around the release window of any mainline One Piece set, and OP-17 had a dated, official window to point to. These are the dates the official pages print.
The Official Release Calendar
The Japanese product page prints a release date of August 22, 2026 (2026.08.22) and a launch-commemoration event for 世界最強の戦士【OP-17】. The English page prints a pre-release date of August 21, 2026 and a release date of August 28, 2026. The Japanese release came six days before the English one.
Premium Bandai Lottery Sales
The Japanese page also lists a Premium Bandai lottery sale, with an application window of August 7 to August 18, 2026 (2026.8.7 to 8.18). The page also names participating stores under 取り扱い店舗.
Reading Release-Week Asks
On August 24, 2026 the OP-17 box was asking ¥15,699 to ¥16,000 on SNKRDUNK; as of October 2, 2026 the lowest ask is ¥11,999 (~$78), and it was ¥11,500 (~$75) on September 30, 2026. These are asking prices on a marketplace, not confirmed sales.
Two disciplines protect you: decide your maximum acceptable premium before you start chasing a listing, and compare any offer with the latest dated ask rather than with a “few left” notice.
OP-17 Booster Box vs Case: The Decision Framework
The core question: several boxes in a carton, or one box? The side-by-side uses only what can be stated without a Bandai case figure.
| Factor | One booster box | One case |
|---|---|---|
| Cost | SNKRDUNK lowest ask ¥11,999 (~$78) as of October 2, 2026 | No priced OP-17 case listing at the time of this update; Bandai prints no case price |
| Hit variance | Higher — one box can miss the top treatments entirely | Smoothed — more boxes means more draws, though no pull rate is published |
| Storage | Trivial — fits on a shelf | A real carton needing dry, dark, stable storage |
| Resale granularity | One unit — all-or-nothing when you sell | Several units — sell boxes individually over time, keep some sealed |
| Capital committed | Low — easy to add a second box later | Significant — confirm the box count with the seller in writing |
| Provenance if held sealed | Shrink-wrapped box | Unopened factory carton — the cleaner long-term unit |
Buy a single box if:
- You mainly want the opening experience of a new mainline set.
- You are a collector targeting a few specific cards — a box gives you the ride, and singles give you the precision.
- This is your first Japanese One Piece purchase and you are still learning how the rarity ladder feels in hand.
- You would rather stay flexible and add a second box after early openings show how the set pulls.
Buy a case if:
- You resell. A case gives you several sellable units and the option to move sealed boxes and opened singles in parallel.
- You want the widest exposure to the top treatments. The official Japanese page prints the labels スーパーリーダーパラレル (the Luffy Leader, OP17-079), スーパーパラレル, 4周年記念 海賊団パラレルカード and the SPカード tiers. No case or box guarantees any of them; more boxes simply mean more draws. The OP-17 chase cards guide covers the card-by-card list.
- You are holding sealed at meaningful scale. Holding sealed is a position, and a single box is a souvenir. Nothing on the official pages or in the dated asks says what sealed OP-17 will ask later, so size it as a bet you can afford to be wrong about.
- You run a shop. Case and multi-case quantities are a wholesale conversation, and we do that directly — see our Japanese TCG wholesale guide for card shops.
Boxes buy you the experience; cases buy you the distribution. If your goal is fun plus a lottery ticket, a box does the job with much less capital committed. If your goal is smoothed variance or resale inventory, only a case delivers that shape.
And one honest subtraction: if what you actually want is one specific card, neither a box nor a case is the efficient route — a targeted single almost always is. The case-versus-box question is only interesting once you have decided sealed is the right format for you.
Japanese One Piece Boxes in Our Store
The table sets three recent Japanese sets side by side: the official release date and pack price, the lowest SNKRDUNK box ask on the date shown, and our own listing. Bandai prints no box price for any of them, so there is no official box figure to measure the asks against.
| Set | Japanese release and pack price | SNKRDUNK lowest box ask | In our store |
|---|---|---|---|
| OP-13 Carrying on His Will | August 23, 2025, ¥220 | ¥16,700 (~$108) on October 1, 2026 | Sold out at the time of this update |
| OP-16 The Time of Battle | May 30, 2026, ¥220 | ¥8,000 (~$52) on September 30, 2026 | Sold out at the time of this update |
| OP-17 The World’s Strongest Warriors | August 22, 2026, ¥240 | ¥11,999 (~$78) on October 2, 2026 | Sold out at the time of this update |
The OP-13 and OP-17 rows show the Damaged Box, a separate product from the sealed box, and the OP-16 row shows its sealed box; requests for another product go through Quick Order.
What the table does support: box asks differ from set to set, and the newest set does not automatically carry the highest ask. It does not support a claim about how any of these sets will price later, and a sealed-case plan should be sized without one.
The OP-17 Market Check
The market snapshot is dated, and everything in it is an asking price, not a confirmed sale.
- The box. SNKRDUNK’s lowest ask for a sealed OP-17 box is ¥11,999 (~$78) as of October 2, 2026, with 99+ single-box listings on the product page. It was ¥11,500 (~$75) on September 30, 2026 and ¥15,699 to ¥16,000 on August 24, 2026.
- The base Secret Rares are cheap by comparison. As of September 30, 2026, the lowest asks are ¥1,999 (~$13) for Loki (OP17-119) and ¥1,800 (~$12) for Rocks D. Xebec (OP17-118). The higher asks sit on the parallel treatments, not on the base Secret Rare slot.
- The chase tier. The Top 10 shows the lowest ask for each of the ten highest-asking OP-17 listings.
Top 10 OP-17 Cards by SNKRDUNK Ask
| Rank | Card | Number | SNKRDUNK label | Raw ask | PSA 10 ask |
|---|---|---|---|---|---|
| 1 | Monkey D. Luffy | EB04-061 | SEC-SP, 海賊団スーパーパラレル | ¥900,000 (~$5,844) | ¥2,300,000 (~$14,935) |
| 2 | Rocks D. Xebec | OP17-118 | SEC-SP, 海賊団スーパーパラレル | ¥436,000 (~$2,831) | ¥900,000 (~$5,844) |
| 3 | Shanks | OP17-022 | SR-SP | ¥133,333 (~$866) | ¥350,000 (~$2,273) |
| 4 | Monkey D. Luffy (Leader) | OP17-079 | L-SP | ¥89,999 (~$584) | ¥315,000 (~$2,045) |
| 5 | Charlotte Linlin | OP17-112 | SR-SP | ¥88,000 (~$571) | no PSA 10 listing seen |
| 6 | Edward Newgate | OP17-005 | SR-SP | ¥75,000 (~$487) | ¥160,000 (~$1,039) |
| 7 | Kaido | OP17-062 | SR-SP | ¥64,000 (~$416) | ¥180,000 (~$1,169) |
| 8 | Monkey D. Luffy | ST31-004 | SR-SPC, 新四皇スペシャルカード | ¥53,000 (~$344) | ¥178,000 (~$1,156) |
| 9 | Roronoa Zoro | EB04-007 | SR-SPC, 覇王色スペシャルカード | ¥19,800 (~$129) | no PSA 10 listing seen |
| 10 | Shanks | OP13-028 | SR-SPC, 新四皇スペシャルカード | ¥16,000 (~$104) | no PSA 10 listing seen |
SEC-SP, SR-SP, L-SP and SR-SPC are SNKRDUNK’s labels. The official card list prints the base rarity and a _p suffix for each parallel row and does not say which row is which. No OP-17 card is listed as ours.
Every figure here is an asking price, not a confirmed sale — marketplace listings, not closed transactions. Three defenses still apply: (1) compare every offer with the latest dated ask rather than with an older headline; (2) check that a seller’s box count is stated in writing; (3) if a listing pressures you with countdown urgency, that pressure is the product being sold.
None of this means “don’t buy.” It means buy with the numbers in front of you. For the release timeline and the card list, keep the OP-17 release date, card list and pre-order guide bookmarked; the full checklist is on the OP-17 card list.
What Is Confirmed Inside OP-17
These are the contents printed by the official OP-17 pages and listed in the official card database as of September 30, 2026, with no leaks and no speculation.
The Card List
- 169 rows in the official Japanese card list: 119 base prints, 39 own-set parallel and Treasure Rare rows, and 11 rows with other-set numbers sourced to OP-17. The base prints break down as 6 Leaders, 10 Super Rares, 26 Rares, 30 Uncommons, 45 Commons and 2 Secret Rares.
- The Secret Rares: the page prints three. The card list shows Rocks D. Xebec (OP17-118) and Loki (OP17-119) as base Secret Rares, and the third as Luffy EB04-061, a 4th-anniversary parallel with another set’s number sourced to OP-17.
- The Treasure Rare: Lucky Roux (OP17-033), listed with the rarity TR.
- Six Leaders: Edward Newgate OP17-001, Shanks OP17-020, Rocks D. Xebec OP17-039, Kaido OP17-058, Monkey D. Luffy OP17-079 and Charlotte Linlin OP17-099.
Treatment Labels on the Official Page
- スーパーリーダーパラレル: the Luffy Leader, OP17-079.
- スーパーパラレル: the page shows four cards, with files named for OP17-005 (Newgate), OP17-022 (Shanks), OP17-062 (Kaido) and OP17-112 (Linlin).
- 4周年記念 海賊団パラレルカード: two cards, the Straw Hat Crew’s EB04-061 and the Rocks Pirates’ OP17-118.
- Kaido by Keisuke Itagaki: the page has a block for a Kaido illustrated by the Baki series creator Keisuke Itagaki (板垣恵介).
- FOUR EMPERORS スペシャルカード: ST31-004, OP13-028, P-084 and ST27-005.
- 覇王色SP: OP12-056, ST32-002, OP14-108, P-107, OP16-098 and EB04-007.
The card list shows ten rows with the rarity SPカード, all with other-set numbers. Which database row corresponds to which treatment label is not stated by the page, so the labels are matched only where the page names the card number.
For case buyers, the relevant signal is the treatment structure: Leader, Super Parallel, Pirate Crew Parallel and SP tiers are a deep chase hierarchy. The structure says what exists, not how often it appears. The card-by-card breakdown is in the OP-17 chase cards guide, and the next Japanese set, OP-18 (神の支配), has a pre-order guide with its November 21, 2026 Japanese release date.
How Ordering From Tokyo Works
We are a Japanese trading card exporter based in Tokyo, shipping Japanese sealed product and singles worldwide. Here is how OP-17, and Japanese One Piece sealed product generally, works with us:
- The OP-17 boxes are sold out at the time of this update; restock requests go through Quick Order.
- Prices are wholesale prices, from a single item. The store describes itself as B2B, with orders accepted from one item; coupons and discounts are available from a ¥30,000 product subtotal, and orders of ¥1,000,000 or more go through a VIP desk where you message us with what you want and how many.
- Case and multi-case quantities are a wholesale conversation. If you run a card shop or buy at volume, contact us through the wholesale channel described in our wholesale guide for card shops. Sourcing requests for a specific card go through Quick Order.
- Shipping and duties. Orders ship from Tokyo by FedEx with tracking: International Connect Plus as the standard service and International Priority as the expedited one, with the cost calculated at checkout (shipping policy). Import duties and taxes are included for the United States and US territories, and all other destinations ship DAP (customs and import taxes). All items are carefully inspected and securely packed before dispatch, per the return and refund policy.
- Payment. Wise bank transfer carries no payment processing fee; PayPal and card payments through PayPal add 5% (payment methods). New to importing from Japan? Our guide to buying One Piece cards from Japan walks through the process.
Frequently Asked Questions
How many boxes are in an OP-17 case?
Bandai does not print how many boxes make up an OP-17 case on its Japanese or English product pages, so we give no box count. A Japanese pack holds 6 cards at ¥240 tax included, and the official box render shows 24 packs per box. Ask any seller to confirm the count in writing before you compare offers.
How much does an OP-17 case cost?
Bandai prints no OP-17 case price and no box price. By arithmetic, 24 packs at ¥240 is ¥5,760, which is not a printed MSRP. SNKRDUNK’s lowest box ask is ¥11,999 as of October 2, 2026, and there is no priced OP-17 case listing on our store at the time of this update.
When did OP-17 release?
The Japanese version released on Saturday, August 22, 2026. The English version released on August 28, 2026, with pre-release events starting August 21, a six-day gap for a mainline One Piece set. The next Japanese set, OP-18, is printed on the official page with a release date of November 21, 2026.
Should I buy an OP-17 booster box or a case?
Buy a box if you want the opening experience, are targeting specific cards, or want to stay flexible, since it commits much less capital. Buy a case if you resell, want more draws across several boxes, or are holding sealed at scale. Confirm the seller’s box count first.
Is a Japanese OP-17 case the same as an English case?
No. They are separate products in different languages, though both versions print 131+4 card types. The Japanese version released August 22, 2026 at ¥240 per pack, and the English version released August 28, 2026 at USD $4.99 per pack. We are a Tokyo exporter and sell the Japanese version, shipped worldwide with tracking.
Can I buy OP-17 from Samurai Sword Tokyo?
The regular OP-17 box and the OP-17 Damaged Box are sold out at the time of this update, and restock requests go through Quick Order. Case and multi-case quantities are a wholesale conversation handled directly. Our Japanese sealed product ships from Tokyo.
What is the OP-17 box asking on SNKRDUNK?
As of October 2, 2026, the lowest SNKRDUNK ask for an OP-17 box is ¥11,999. It was ¥11,500 on September 30, 2026 and ¥15,699 to ¥16,000 on August 24, 2026. These are asking prices from an active marketplace, not confirmed sales.
What is the Japanese name of OP-17?
In Japan the set is called ブースターパック 世界最強の戦士【OP-17】, romanized as “Sekai Saikyo no Senshi” and meaning the world’s strongest warriors. The English name is BOOSTER PACK -THE WORLD’S STRONGEST WARRIORS- [OP-17]. Knowing the Japanese name helps when you check Japanese sources or listings.
Official facts per onepiece-cardgame.com and en.onepiece-cardgame.com as of October 2, 2026. SNKRDUNK figures are lowest asking prices on the dates shown, not sales, and are not official figures. Store prices are linked listings on samuraiswordtokyo.com.
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