UNION ARENA BOOSTER PACK THE IDOLM@STER SHINY COLORS Vol.2 [EX03BT] ホーム PRODUCTS BOOSTER PACK UNION ARENA BOOSTER PACK THE IDOLM@STER SHINY COLORS Vol.2 [EX03BT] Release Date December 22, 2023 Contents Cards x 8 *Card types are random. *The illustration may differ somewhat from the final product. *Product details may differ from the actual product.