Union Arena
UE21BT The 100 Girlfriends Who Really, Really, Really, Really, REALLY Love You
Released July 10, 2026 · Prices updated October 24, 2026
UE21BT The 100 Girlfriends Who Really, Really, Really, Really, REALLY Love You has 138 cards. On October 24, 2026 a sealed booster box costs $158.42; opening one returns $100.28 on average and $76.10 for a typical box, and 8% of boxes are worth more than they cost. The most valuable card is Hakari Hanazono (024) (SR**) at $411.11, and one of every card (the master set) costs $3,546.75.
The 100 Girlfriends Union Arena cards →
- Cards
- 138
- Master set value
- $3,546.75
- Booster box
- $158.42
- Top card
- $411.11
One of every card
Hakari Hanazono (024) (SR**)
Is the UE21BT booster box worth opening?
Hold it
Opening loses money on average. Keep it sealed or buy the singles you want.
Low confidence estimate
- Average box, opened
- $100.28
- Typical box, opened
- $76.10
- Chance a box beats its price
- 8%
63% of box price
Half of boxes do worse than this
We simulated 10,000 box openings using today's market prices. 8 in 10 boxes land between $40.09 and $137.56. Sealed, this box is up 98% from its $79.84 release price. Selling pulled cards costs roughly 13% in marketplace fees plus shipping, so real returns are lower.
Box price vs. value opened
Where the value comes from
| Pull | Per box | Avg card | Adds to box | Best card |
|---|---|---|---|---|
| Super Rare | 6 | $7.23 | $43.39 | Hakari Hanazono (024) · $25.69 |
| 2-star parallel | 1 in 16 | $371.83 | $23.24 | Hakari Hanazono (024) (SR**) · $411.11 |
| 1-star parallel | 1 | $16.17 | $16.17 | Kusuri Yakuzen (058) (R*) · $41.44 |
| Common | 120 | $0.05 | $6.00 | Rentaro Aijo (001) · $0.05 |
| Action Point | 2 | $2.09 | $4.18 | Action Point Card (AP01) · $3.00 |
| Box topper | 1 | $3.27 | $3.27 | Hakari Hanazono (019) (Box Topper Foil) · $7.45 |
| Uncommon | 48 | $0.05 | $2.40 | Rentaro Aijo (002) · $0.05 |
| Rare | 10 | $0.16 | $1.63 | Hahari Hanazono (073) · $0.19 |
| 3-star parallel | 1 in 50 | $0.00 | $0.00 | — |
How we calculate this · confidence: Low
A box has 16 packs of 12 cards. Pull rates aren't published by the maker, so we use community case-opening data. Every card of a rarity is treated as equally likely.
Rates per box: about 6 Super Rares, 1 one-star parallel, 2 Action Points, one 2-star parallel per 16-box case, and 3-star parallels at a few per hundred boxes. Every box includes one box topper.
English Union Arena pull data is thin (a few boxes plus Japanese data), so this is a rough guide.
Rare silver/gold box toppers and special-art Action Point cards are left out because nobody has published how often they appear, so this estimate may be a little low.
Bulk commons and uncommons are counted at 5¢ each.
What do players actually pull from UE21BT boxes?
Real booster box openings logged by FoilKraken users, next to our estimate.
No openings logged yet. Opened UE21BT booster boxes? Log what you pulled and help everyone see the real odds.
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Sign in, it's freeUE21BT booster boxes and sealed products
The 100 Girlfriends Who Really, Really, Really, Really, REALLY Love You - Booster Box Case
Sealed
$2,081.66
The 100 Girlfriends Who Really, Really, Really, Really, REALLY Love You - Booster Box
Sealed
$158.42
The 100 Girlfriends Who Really, Really, Really, Really, REALLY Love You - Box Promotion Pack
Sealed
$11.95
The 100 Girlfriends Who Really, Really, Really, Really, REALLY Love You - Booster Pack
Sealed
$9.72
UE21BT card list and prices
138 cards
Hakari Hanazono (024) (SR**)
UE21BT/RLY-1-024 · Super Rare 2-Star
$411.11
Hahari Hanazono (032) (SR**)
UE21BT/RLY-1-032 · Super Rare 2-Star
$398.74
Nano Eiai (053) (SR**)
UE21BT/RLY-1-053 · Super Rare 2-Star
$396.64
Shizuka Yoshimoto (067) (SR**)
UE21BT/RLY-1-067 · Super Rare 2-Star
$393.29
Karane Inda (009) (SR**)
UE21BT/RLY-1-009 · Super Rare 2-Star
$337.10
Kusuri Yakuzen (060) (SR**)
UE21BT/RLY-1-060 · Super Rare 2-Star
$294.07
Action Point Card (AP06)
UE21BT/RLY-1-AP06 · Action Point
$132.50
Action Point Card (AP01)
UE21BT/RLY-1-AP01 · Action Point
$113.65
Shizuka Yoshimoto (018) (R*) (Box Topper Gold Foil)
UE21BT/RLY-1-018 · Rare 1-Star
$90.03
Hahari Hanazono (073) (R*) (Box Topper Gold Foil)
UE21BT/RLY-1-073 · Rare 1-Star
$83.43
Action Point Card (AP04)
UE21BT/RLY-1-AP04 · Action Point
$83.10
Action Point Card (AP02)
UE21BT/RLY-1-AP02 · Action Point
$77.81
Hakari Hanazono (070) (R*) (Box Topper Gold Foil)
UE21BT/RLY-1-070 · Rare 1-Star
$76.26
Action Point Card (AP05)
UE21BT/RLY-1-AP05 · Action Point
$69.96
Action Point Card (AP03)
UE21BT/RLY-1-AP03 · Action Point
$66.18
Nano Eiai (012) (R*) (Box Topper Gold Foil)
UE21BT/RLY-1-012 · Rare 1-Star
$57.41
Kusuri Yakuzen (058) (R*)
UE21BT/RLY-1-058 · Rare 1-Star
$41.44
Karane Inda (007) (R*)
UE21BT/RLY-1-007 · Rare 1-Star
$28.64
Karane Inda (046) (R*) (Box Topper Gold Foil)
UE21BT/RLY-1-046 · Rare 1-Star
$26.29
Hakari Hanazono (024)
UE21BT/RLY-1-024 · Super Rare
$25.69
Hakari Hanazono (023) (R*)
UE21BT/RLY-1-023 · Rare 1-Star
$25.54
Kusuri Yakuzen (015) (R*) (Box Topper Gold Foil)
UE21BT/RLY-1-015 · Rare 1-Star
$22.75
Nano Eiai (053)
UE21BT/RLY-1-053 · Super Rare
$20.19
Hakari Hanazono (025) (SR*)
UE21BT/RLY-1-025 · Super Rare 1-Star
$19.82
Shizuka Yoshimoto (065) (R*)
UE21BT/RLY-1-065 · Rare 1-Star
$17.54
Nano Eiai (052) (SR*)
UE21BT/RLY-1-052 · Super Rare 1-Star
$16.56
Hahari Hanazono (031) (SR*)
UE21BT/RLY-1-031 · Super Rare 1-Star
$16.29
Karane Inda (008) (SR*)
UE21BT/RLY-1-008 · Super Rare 1-Star
$15.74
Shizuka Yoshimoto (066) (SR*)
UE21BT/RLY-1-066 · Super Rare 1-Star
$14.86
Nano Eiai (051) (R*)
UE21BT/RLY-1-051 · Rare 1-Star
$14.58
Hahari Hanazono (030) (R*)
UE21BT/RLY-1-030 · Rare 1-Star
$14.20
Kusuri Yakuzen (059) (SR*)
UE21BT/RLY-1-059 · Super Rare 1-Star
$13.37
Hakari Hanazono (070) (R*)
UE21BT/RLY-1-070 · Rare 1-Star
$10.98
Shizuka Yoshimoto (067)
UE21BT/RLY-1-067 · Super Rare
$10.96
Hahari Hanazono (073) (R*)
UE21BT/RLY-1-073 · Rare 1-Star
$10.63
Nano Eiai (012) (R*)
UE21BT/RLY-1-012 · Rare 1-Star
$9.59
Shizuka Yoshimoto (018) (R*)
UE21BT/RLY-1-018 · Rare 1-Star
$8.95
Hakari Hanazono (019) (Box Topper Foil)
UE21BT/RLY-1-019 · Common 1-Star
$7.45
Karane Inda (046) (R*)
UE21BT/RLY-1-046 · Rare 1-Star
$7.22
Kusuri Yakuzen (060)
UE21BT/RLY-1-060 · Super Rare
$5.28
Kusuri Yakuzen (015) (R*)
UE21BT/RLY-1-015 · Rare 1-Star
$5.10
Karane Inda (009)
UE21BT/RLY-1-009 · Super Rare
$4.13
Hahari Hanazono (032)
UE21BT/RLY-1-032 · Super Rare
$4.12
Karane Inda (008)
UE21BT/RLY-1-008 · Super Rare
$3.82
Kusuri Yakuzen (059)
UE21BT/RLY-1-059 · Super Rare
$3.60
Hakari Hanazono (025)
UE21BT/RLY-1-025 · Super Rare
$3.37
Kusuri Yakuzen (054) (Box Topper Foil)
UE21BT/RLY-1-054 · Common 1-Star
$3.29
Nano Eiai (047) (Box Topper Foil)
UE21BT/RLY-1-047 · Common 1-Star
$3.16
Shizuka Yoshimoto (066)
UE21BT/RLY-1-066 · Super Rare
$2.76
Karane Inda (003) (Box Topper Foil)
UE21BT/RLY-1-003 · Common 1-Star
$2.36
Hahari Hanazono (026) (Box Topper Foil)
UE21BT/RLY-1-026 · Common 1-Star
$2.36
Nano Eiai (052)
UE21BT/RLY-1-052 · Super Rare
$2.28
Action Point Card (AP12)
UE21BT/RLY-1-AP12 · Action Point
$1.85
Action Point Card (AP08)
UE21BT/RLY-1-AP08 · Action Point
$1.49
Shizuka Yoshimoto (062) (Box Topper Foil)
UE21BT/RLY-1-062 · Common 1-Star
$1.01
Action Point Card (AP07)
UE21BT/RLY-1-AP07 · Action Point
$1.00
Action Point Card (AP10)
UE21BT/RLY-1-AP10 · Action Point
$0.98
Action Point Card (AP09)
UE21BT/RLY-1-AP09 · Action Point
$0.90
Action Point Card (AP11)
UE21BT/RLY-1-AP11 · Action Point
$0.86
Kara-pult & Hurl-kari
UE21BT/RLY-1-036 · Common
$0.60
Hahari Hanazono (031)
UE21BT/RLY-1-031 · Super Rare
$0.58
Karane Inda (003)
UE21BT/RLY-1-003 · Common
$0.44
The Girlfriends Who Really, Really, Really, Really, Really Love Me (041)
UE21BT/RLY-1-041 · Uncommon
$0.44
I Bought Today's Ending, So I Can Do Whatever I Want
UE21BT/RLY-1-037 · Uncommon
$0.33
Hahari Hanazono (072)
UE21BT/RLY-1-072 · Uncommon
$0.27
Hahari Hanazono (028)
UE21BT/RLY-1-028 · Uncommon
$0.26
Hahari Hanazono (029)
UE21BT/RLY-1-029 · Uncommon
$0.23
The Girlfriends Who Really, Really, Really, Really, Really Love Me (082)
UE21BT/RLY-1-082 · Uncommon
$0.23
Hahari Hanazono (073)
UE21BT/RLY-1-073 · Rare
$0.19
Kusuri Yakuzen (015)
UE21BT/RLY-1-015 · Rare
$0.18
Hakari Hanazono (021)
UE21BT/RLY-1-021 · Uncommon
$0.18
Tsundere
UE21BT/RLY-1-039 · Uncommon
$0.18
Karane Inda (046)
UE21BT/RLY-1-046 · Rare
$0.18
Nano Eiai (051)
UE21BT/RLY-1-051 · Rare
$0.18
Karane Inda (007)
UE21BT/RLY-1-007 · Rare
$0.17
Hakari Hanazono (019)
UE21BT/RLY-1-019 · Common
$0.17
Hakari Hanazono (023)
UE21BT/RLY-1-023 · Rare
$0.17
Rentaro Aijo (043)
UE21BT/RLY-1-043 · Uncommon
$0.17
Pi... 3.141592—
UE21BT/RLY-1-075 · Common
$0.17
Karane Inda (005)
UE21BT/RLY-1-005 · Uncommon
$0.16
Kusuri Yakuzen (057)
UE21BT/RLY-1-057 · Uncommon
$0.16
Rentaro Aijo (001)
UE21BT/RLY-1-001 · Common
$0.15
Rentaro Aijo (002)
UE21BT/RLY-1-002 · Uncommon
$0.15
Karane Inda (006)
UE21BT/RLY-1-006 · Uncommon
$0.15
Nano Eiai (012)
UE21BT/RLY-1-012 · Rare
$0.15
Shizuka Yoshimoto (017)
UE21BT/RLY-1-017 · Uncommon
$0.15
Shizuka Yoshimoto (018)
UE21BT/RLY-1-018 · Rare
$0.15
Hakari Hanazono (020)
UE21BT/RLY-1-020 · Common
$0.15
Hakari Hanazono (022)
UE21BT/RLY-1-022 · Uncommon
$0.15
Hahari Hanazono (030)
UE21BT/RLY-1-030 · Rare
$0.15
Rich Person's House
UE21BT/RLY-1-033 · Common
$0.15
This Embodiment of Faithfulness Is Also a Five-Timer
UE21BT/RLY-1-038 · Common
$0.15
Pink Four-Leaf Clover
UE21BT/RLY-1-040 · Common
$0.15
Kusuri Yakuzen (055)
UE21BT/RLY-1-055 · Common
$0.15
Kusuri Yakuzen (058)
UE21BT/RLY-1-058 · Rare
$0.15
Shizuka Yoshimoto (062)
UE21BT/RLY-1-062 · Common
$0.15
Shizuka Yoshimoto (064)
UE21BT/RLY-1-064 · Uncommon
$0.15
Hakari Hanazono (070)
UE21BT/RLY-1-070 · Rare
$0.15
This Would Be More Efficient
UE21BT/RLY-1-077 · Uncommon
$0.15
Uncontrollable-Urge-to-Kiss-Lover Medicine
UE21BT/RLY-1-080 · Uncommon
$0.15
"She Gave a Hearty Laugh."
UE21BT/RLY-1-081 · Uncommon
$0.15
Karane Inda (004)
UE21BT/RLY-1-004 · Common
$0.14
Karane Inda (044)
UE21BT/RLY-1-044 · Common
$0.14
Karane Inda (045)
UE21BT/RLY-1-045 · Uncommon
$0.14
Nano Eiai (047)
UE21BT/RLY-1-047 · Common
$0.14
Nano Eiai (048)
UE21BT/RLY-1-048 · Common
$0.14
Nano Eiai (049)
UE21BT/RLY-1-049 · Uncommon
$0.14
Nano Eiai (050)
UE21BT/RLY-1-050 · Uncommon
$0.14
Kusuri Yakuzen (056)
UE21BT/RLY-1-056 · Uncommon
$0.14
Shizuka Yoshimoto (063)
UE21BT/RLY-1-063 · Uncommon
$0.14
Shizuka Yoshimoto (065)
UE21BT/RLY-1-065 · Rare
$0.14
Hakari Hanazono (069)
UE21BT/RLY-1-069 · Uncommon
$0.14
Hahari Hanazono (071)
UE21BT/RLY-1-071 · Common
$0.14
Medicine-Reversing Medicine
UE21BT/RLY-1-076 · Common
$0.14
Nano Eiai (010)
UE21BT/RLY-1-010 · Common
$0.13
Nano Eiai (011)
UE21BT/RLY-1-011 · Uncommon
$0.13
Kusuri Yakuzen (013)
UE21BT/RLY-1-013 · Common
$0.13
Shizuka Yoshimoto (016)
UE21BT/RLY-1-016 · Common
$0.13
Hahari Hanazono (027)
UE21BT/RLY-1-027 · Common
$0.13
I Was This Close to Ecsta-pee!
UE21BT/RLY-1-034 · Uncommon
$0.13
Rentaro Aijo (042)
UE21BT/RLY-1-042 · Common
$0.13
Kusuri Yakuzen (054)
UE21BT/RLY-1-054 · Common
$0.13
Shizuka Yoshimoto (061)
UE21BT/RLY-1-061 · Common
$0.13
Hakari Hanazono (068)
UE21BT/RLY-1-068 · Common
$0.13
Human Magnet Medicine
UE21BT/RLY-1-079 · Common
$0.13
God
UE21BT/RLY-1-035 · Common
$0.12
Chemistry Lab
UE21BT/RLY-1-074 · Common
$0.12
Circlet Love Story
UE21BT/RLY-1-078 · Common
$0.12
Kusuri Yakuzen (014)
UE21BT/RLY-1-014 · Uncommon
$0.11
Hahari Hanazono (026)
UE21BT/RLY-1-026 · Common
$0.11
The Girlfriends Who Really, Really, Really, Really, Really Love Me (041) (U***)
UE21BT/RLY-1-041 · Uncommon 3-Star
—
The Girlfriends Who Really, Really, Really, Really, Really Love Me (082) (U***)
UE21BT/RLY-1-082 · Uncommon 3-Star
—
Action Point Card (AP01*) (Serial Numbered)
UE21BT/RLY-1-AP01 · Action Point
—
Action Point Card (AP02*) (Serial Numbered)
UE21BT/RLY-1-AP02 · Action Point
—
Action Point Card (AP03*) (Serial Numbered)
UE21BT/RLY-1-AP03 · Action Point
—
Action Point Card (AP04*) (Serial Numbered)
UE21BT/RLY-1-AP04 · Action Point
—
Action Point Card (AP05*) (Serial Numbered)
UE21BT/RLY-1-AP05 · Action Point
—
Action Point Card (AP06*) (Serial Numbered)
UE21BT/RLY-1-AP06 · Action Point
—