TCGWaifu
Nano Eiai (012) (R*) (Box Topper Gold Foil) (UE21BT/RLY-1-012) card

Image via TCGplayer via TCGCSV — artwork © Bandai. Shown for identification.

Waifu Score

73.1
  • Artwork · 25%85
  • Character popularity · 20%70
  • Rarity · 15%80
  • Market value · 15%54
  • Collector demand · 15%71
  • Set importance · 10%72

The Waifu Scoreis TCGWaifu's composite rating of a card's collectibility — artwork, character popularity, rarity, market value, collector demand, and set importance, weighted in that order.

R★ (Box Topper)UE21BT/RLY-1-012

Nano Eiai (012) (R*) (Box Topper Gold Foil)

Nano Eiai · Union Arena · Union Arena: 100 Girlfriends

$58.19— stableTCGplayer market · updated 2026-09-29

TCGWaifu editorial estimate: $58

Price history

No market listings tracked for this card yet — history begins once a data source carries it.

Why collectors want it

Nano Eiai's one-star R box topper from Union Arena: 100 Girlfriends.

Game
Union Arena
Set
Union Arena: 100 Girlfriends (UE21BT)
Rarity
R★ (Box Topper)
Card type
Character
Language
English
Released
2026

Where to buy

Buy on TCGplayer · $58.19Shop on eBay

Affiliate disclosure: TCGWaifu may earn a commission from purchases made through the links above, at no extra cost to you. Prices shown are editorial estimates, not live quotes.

Where Nano Eiai (012) (R*) (Box Topper Gold Foil) stands

It is the 2nd most valuable of the 16 Nano Eiai cards we price with TCGplayer market data. By market price it ranks 15th of the 129 priced cards TCGplayer lists under Union Arena: 100 Girlfriends. TCGplayer groups it with that list's Rare 1-Star cards, which have a median market price of $19.10 (18 cards).

More Nano Eiai prints

  • Nano Eiai (053) UE21BT$29.18
  • Nano Eiai (052) (SR*) UE21BT$16.17
  • Nano Eiai (051) (R*) UE21BT$14.34
  • Nano Eiai (012) (R*) UE21BT$10.19
  • Nano Eiai (047) (Box Topper Foil) UE21BT$3.04
  • Nano Eiai (052) UE21BT$2.16
Every Nano Eiai print →

Also from Union Arena: 100 Girlfriends

Full UE21BT card list →

Prices are TCGplayer market data, refreshed weekly; “est.” marks our estimate.

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Affiliate disclosure: TCGWaifu may earn a commission from purchases made through the links above, at no extra cost to you. Linked prices are TCGplayer market prices, refreshed weekly.

Nano Eiai (012) (R*) (Box Topper Gold Foil): quick answers

How much is Nano Eiai (012) (R*) (Box Topper Gold Foil) (UE21BT/RLY-1-012) worth?
The current TCGplayer market price is $58.19 (updated 2026-09-29). Our editorial estimate for a near-mint copy is $58. Actual sale prices vary with condition and printing.
What set is Nano Eiai (012) (R*) (Box Topper Gold Foil) from?
It was printed in Union Arena: 100 Girlfriends (UE21BT), a Union Arena set released July 2026.
Is it the most valuable Nano Eiai card?
No: it is the 2nd most valuable of the 16 Nano Eiai cards we price with TCGplayer market data. Her character page lists them all.
Is Nano Eiai (012) (R*) (Box Topper Gold Foil) a good card to collect?
It scores 73.1/100 on our Waifu Score. Nano Eiai's one-star R box topper from Union Arena: 100 Girlfriends.
$58.19affiliate linkShop on TCGplayer →