One Piece Wafers

One Piece Wafers (ワンピースウエハース) is a brand of wafers produced by Bandai. Their main appeal comes from the fact that the packages include collectable One Piece cards. The first round of wafers was released in 2018, and since then nine rounds have been released in total.

Overview
The wafers contain vanilla cream filling. They remain unchanged in all the products, while the packaging and the collectable cards change. Each round of wafers has two or three different package designs, which has no bearing on the cards inside.

The collectable cards feature an illustration on the front side and information about the character on the back side. A rarity system was established from the second round onwards, ranking the cards as normal, rare or super rare. The fourth round introduced secret cards, which are the rarest and have special numbering. The eight round introduced a grand rare rank between super rare and secret. The rarity of the card affects its quality, with rarer cards featuring foil plating or holographic effects.

The rarity of a card is denoted on back with letters and on the front with stars.

-our memories-
The first round, titled -our memories-, was released on November 15, 2018. It contained three types of cards: Memories Cards, Visuals Cards and Special Cards.

-20th anniversary-
The second round, titled -20th anniversary-, was released on August 5, 2019. It introduced a rarity system to the cards and included two "Movie Cards" based on One Piece: Stampede.

Samurai Country
The third round, titled Samurai Country (侍の国), was released on December 9, 2019. The collectable cards were divided between the Wano Country Arc and the Dressrosa Arc.

New World Champion
The fourth round, titled New World Champion (新世界の覇者), was released on March 16, 2020.

The Worst Generation on the Move
The fifth round, titled The Worst Generation on the Move (躍動する最悪の世代), was released on June 22, 2020.

Clashing Justice
The sixth round, titled Clashing Justice (躍動する最悪の世代), was released on September 21, 2020.

Inherited Will
The seventh round, titled Inherited Will (受け継がれる意思), was released on December 7, 2020.

Unparalleled Great Pirates
The eighth round, titled Unparalleled Great Pirates (天下無双の大海賊), was released on March 22, 2021.

Counterattack Signal
The ninth round, titled Counterattack Signal (反撃の狼煙), was released on June 14, 2021.