UP01BT · Union Arena · October 23, 2026
Union Arena: NIKKE Precious Booster
NIKKE's Union Arena debut, dated October 23, 2026 from retailer listings. Not released yet — the card list fills in here the week it drops. A female-character-led franchise meeting Union Arena's star-rarity structure is the most waifu-relevant Union Arena release announced so far.
Release countdown
Releases October 23, 2026 — UP01BT · Union Arena
Get the card list the week it drops
We publish the full UP01BT card list with market prices the week the set goes live. One email, no spam.
When does Union Arena: NIKKE Precious Booster release?
Union Arena: NIKKE Precious Booster (UP01BT) is dated October 23, 2026 for Union Arena. Dates sourced from retailer listings can still move, so we re-check them against publisher announcements on every weekly refresh and update this page when they change.
The full card list is not published until release. When it lands, the complete UP01BT checklist appears on this page automatically with weekly market prices for every card, so this is the page to bookmark rather than a pre-order listing that disappears once stock sells through.
Booster box pre-order guide
Not released yet. NIKKE's Weiss Schwarz sets put their value in a narrow band of premium prints of the most popular squad members, and Union Arena's three-star SR slot tends to concentrate value even harder. Pre-order at MSRP rather than paying early premiums.
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More Union Arena sets
Union Arena: NIKKE Precious Booster: quick answers
- When does Union Arena: NIKKE Precious Booster release?
- Union Arena: NIKKE Precious Booster (UP01BT) releases on October 23, 2026 for Union Arena. Retailer-listed dates can still move; we re-verify against official announcements on every weekly refresh.
- What is confirmed about Union Arena: NIKKE Precious Booster so far?
- NIKKE's Union Arena debut, dated October 23, 2026 from retailer listings. Not released yet — the card list fills in here the week it drops. A female-character-led franchise meeting Union Arena's star-rarity structure is the most waifu-relevant Union Arena release announced so far.
- Is a Union Arena: NIKKE Precious Booster booster box worth pre-ordering?
- Not released yet. NIKKE's Weiss Schwarz sets put their value in a narrow band of premium prints of the most popular squad members, and Union Arena's three-star SR slot tends to concentrate value even harder. Pre-order at MSRP rather than paying early premiums.
- Where is the Union Arena: NIKKE Precious Booster (UP01BT) card list?
- The full checklist is not published until release. It appears on this page automatically on the first weekly data refresh after the set drops, with market prices for every card, so there is nothing to wait for beyond the release date itself.