The term "OP12 Japanese Ver." refers to the Japanese-language version of the One Piece Card Game Booster Pack -Legacy of the Master- [OP-12]. The Japanese set title translates to "Bonds of Master and Disciple" (の). 

Key Details

·Product:

·Booster Pack -Legacy of the Master- [OP-12]

·Language: Japanese

·Release Date (Japan): May 31, 2025

·Theme: The set focuses on the mentor-protégé relationships and training arcs of characters within the One Piece series, such as Zoro and Mihawk.

·Contents: There are a total of 128+1 card types in the set. A Japanese booster box typically contains 24 booster packs, with 6 cards per pack.

·Rarity: The set includes Leader Cards, Special Cards, and Special 3rd Anniversary Cards.

·Collectibility: Japanese One Piece cards are often highly valued by collectors in the West due to their unique appeal and different pull rates compared to their English counterparts.