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Union Arena
Union Arena 100 Girlfriends released in English on July 10, 2026. UE21BT brings the six Season 1 girlfriend characters to the card game with a collector-heavy lineup: foil-stamped signature cards, serial-numbered AP cards signed by the original Japanese cast, connected illustration cards, and box toppers that vary by display.
TL;DR: Union Arena 100 Girlfriends (UE21BT) released in English on July 10, 2026. It has 82 standard card types and 12 serial-numbered, hand-signed AP card types. Each display has 16 packs, each pack has 12 cards, and MSRP is $4.99 per pack. The collector highlights are signed cards, connected ★★★ artwork, and one random box topper from 12 designs: 6 foil and 6 gold foil.
Union Arena 100 Girlfriends (UE21BT) is the English booster set featuring the cast of The 100 Girlfriends Who Really Really Really Really Really Love You. It released on July 10, 2026, with 82 standard card types and 12 AP cards. Those AP cards are serial-numbered, hand-signed Action Point cards featuring the six Season 1 girlfriends and signatures from their Japanese voice cast. Each display box includes 16 packs plus one random box topper from 12 available designs.
This is a collector-heavy set by any measure. The combination of AP serial cards, autograph SR parallels, connected illustration cards, and a per-box topper system makes UE21BT one of the more feature-dense releases in the EN Union Arena catalog.
New to Union Arena? The Union Arena TCG beginner guide covers how the game works before you commit to a specific IP set.
The anime follows Rentaro Aijo, a high school student with a streak of romantic rejections so extreme that the gods of love intervene. Rather than granting him one soulmate, they assign him 100 fated girlfriends, each of whom will die of heartbreak if he rejects her. The series plays the premise as romantic comedy chaos: each girlfriend is a hyperbolized character type, Rentaro genuinely cares for all of them, and the situations escalate quickly.
That premise translates cleanly to the card game. Each of the 6 main girlfriend characters (Hakari, Karane, Shizuka, Nano, Kusuri, and Hahari) has a distinct visual style and personality, which means differentiated card art and distinct ability design rather than palette-swapped variants. Rentaro is the central deck piece, but the girlfriend characters are where the strategy lives.
Season 2 finished in 2025, and the official anime site lists Season 3 broadcasts from July 5, 2026. UE21BT itself officially covers Season 1 content, so the card pool and the anime's current broadcast status should be treated as separate facts.
This anime visual shows several characters from the source series; UE21BT's official product scope is Season 1.
The standard pool in UE21BT is 82 card types across Union Arena's rarity tiers. That's a tighter pool than InuYasha's roughly 130-card set, reflecting a focus on the core girlfriend roster rather than a deep supporting cast across multiple anime arcs.
Above the standard pool sit 12 AP cards. Each AP card is an autograph parallel of a girlfriend character's card, signed by her Japanese voice actress, with a unique serial number on each copy. With 12 AP card types across 6 characters, most girlfriends have more than one AP target for collectors to chase.
AP cards aren't functional upgrades over their base SR equivalents. They play identically in competitive decks. The distinction is physical: the autograph, the serial number, the altered art. Pull rates are low. Most buyers won't see an AP card from a single display box.
For a full breakdown of how AP parallels compare to other Union Arena rarity tiers from Common through Special Rare, the guide below has the complete picture.
GODEEPER: AP cards sit above Special Rares in pull rarity and collector value. Here's how every Union Arena rarity tier works and what each one means for deck building versus collecting. Union Arena Card Rarities Explained →
Within the standard pull spectrum, the primary collector targets are SR parallels with voice actor autographs. These are alternate versions of existing SR cards where the card artwork carries a printed-on autograph from the character's Japanese voice actress.
The official product page highlights foil-stamped signature cards from six voice cast members. The card list and individual listings identify the specific parallel design for each card, so check those entries rather than assuming every signature card has the same variant tier. Six voice actress autographs cover the core girlfriend lineup in UE21BT.
Competitive players should note: autograph SR parallels and their base SR counterparts are the same card for gameplay. If you're building a Union Arena 100 Girlfriends deck for tournament play, the standard SR is the piece you need. The autograph version is a collector upgrade, not a power upgrade.
The six main girlfriend characters each have voice actress autograph SR parallels in UE21BT. The inline card art reflects each character's distinct visual identity.
Two cards in UE21BT form a connected illustration. When placed side by side, their artwork combines into a single wide image spanning both cards. Completing this pair requires both cards individually, either from pulls or singles purchases. Since both are mid-rarity chase cards rather than commons, most players need to target them on the secondary market to get both.
The box topper system is the other notable structural feature. Every display box includes one box topper card, randomly drawn from 12 designs. Six designs use standard foil treatment; six use a gold foil treatment that tends to carry a premium.
Because box toppers are guaranteed per box (one per display, always), they don't enter the secondary market the same way booster pull cards do. You can plan for one topper per box, and if you need a specific character's design, trading or singles purchasing after launch is more reliable than opening until you hit it.
Define your goal first. Collector goals and competitive goals lead to different purchase paths. Knowing which one you're after before spending prevents the most common regret in TCG launches.
For competitive play: check current results. UE21BT is the English product for an IP that already had the Japanese UA26BT release on August 16, 2024. Compare current Union Arena decklists and event results by region instead of waiting for a launch window that has already passed.
For collector targets: compare singles listings. AP cards and signed parallels can vary sharply by character, serial number, and condition. If a specific girlfriend's card is your target, compare dated listings with sealed-product pricing before buying.
For box openings: confirm current stock before purchasing. Retail availability changes after launch, and the official product page warns that specifications can differ by region. Check the retailer page directly rather than relying on an old launch-stock report.
For the connected illustration: target singles directly. The ★★★ connected-illustration cards need to be displayed together to show the full artwork. If you are missing one half, a direct single purchase is more predictable than opening random packs.
If you're chasing a specific AP card, compare it on the secondary market rather than assuming sealed product will deliver the target. Serial numbers, condition, and character demand can move listings in different directions. Gold foil and standard foil box toppers are separate collector variants, so compare the exact design before paying a premium.
If you're playing competitively, use current local tournament reports and decklists rather than launch-week assumptions. UE21BT is a title-restricted Union Arena product, and the value of a card depends on the build you actually plan to play. The Japanese UA26BT release is useful context, but it is not a substitute for checking the legality and event pool in your region.
If budget is the concern, most competitive Union Arena builds don't require the autograph SR versions at all. The Union Arena deck building guide covers how to build a competitive 50-card deck without chasing the collector tier.
GODEEPER: The InuYasha EN launch in August 2026 follows the same format: autograph SRs, a connected illustration pair, and pre-order sellouts. Here's how the InuYasha launch played out and what it tells you about how to approach EN launch sets. Union Arena InuYasha English Release Guide →
The official product page lists an MSRP of $4.99 per pack and 16 packs per display, which implies a $79.84 pack-value total before retailer pricing. The product page does not guarantee current stock, so compare the exact display language and price before buying.
When does Union Arena 100 Girlfriends release in English? The English product released on July 10, 2026. The set code is UE21BT. Check the official product page and current retailer listings for availability rather than relying on launch-stock reports.
What is UE21BT in Union Arena? UE21BT is the English product code for the Union Arena 100 Girlfriends set. It has 82 standard card types plus 12 AP autograph parallel cards, for a total of 94 card types including the autograph tier.
What are AP cards in Union Arena 100 Girlfriends? AP cards are serial-numbered, hand-signed Action Point cards included at an extremely low pull rate. There are 12 AP card types in UE21BT, featuring the 6 Season 1 girlfriends and signatures from their Japanese voice cast. They are collector variants rather than gameplay upgrades.
What are the chase cards in UE21BT? Voice actor autograph SR parallels are the primary collector targets within the standard pull range. Two cards form a connected illustration that only reveals the full image when both are displayed side by side. AP serial-numbered cards are the rarest pull tier.
How much does a box cost? The official MSRP is $4.99 per pack, and each display has 16 packs. That is $79.84 at pack MSRP before retailer pricing, taxes, or shipping.
Where can I buy Union Arena 100 Girlfriends? Availability changes after launch. Check the official product page, retailer listings, and local game stores with Union Arena distribution directly.
Is 100 Girlfriends good for competitive Union Arena? UE21BT is collector-heavy, but its competitive value should be judged from current Union Arena decklists and event results. The Japanese UA26BT release on August 16, 2024 provides an earlier product reference, while regional legality and tournament coverage still need to be checked separately.
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About the author
Beginner Guides & Crossover Writer
Anime fan turned TCG content creator. Bridges the gap between anime fandom and card game strategy. Covers beginner guides, anime-to-TCG crossover content, and Union Arena.
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