【UNION ARENA】Umamusume: Pretty Derby (UA59BT) Japanese Booster Box

Umamusume: Pretty Derby Details
●Language：Japanese
●Release date：12/11/2026
●Condition：Brand New
●Category：UNION ARENA
●Total Card Sets：113
〇SR (Super Rare)：12
〇 R (Rare)：18
〇 U (Uncommon)：35
〇 C (Common)：35
〇 AP (Action Point)：13

Parallel versions of certain cards are also included in this set.

Umamusume: Pretty Derby Box Contents
Each Booster Box includes：
●16 Booster Packs
● 8 Cards per Pack

Serial Number Limited AP Card
A limited-edition Action Point card featuring a unique serial number is included in booster packs at an extremely low pull rate and in limited quantities.

Note: Rare production errors may result in some packs having fewer cards.