BOSS (Boss's younger brother) Role: The young BOSS of District 39. Characteristics: While maintaining his usual carefree vibe, he wears a stylish suit to fit the gangster world. He faces the card battle as the face of the organization.

Boss (BOSS's older brother) Role: The other boss of District 39 (the elder brother). Characteristics: A position supporting the district alongside his brother. His foul mouth remains intact, but his side as an underworld boss is emphasized, showing true intimidation when his brother or the district is in a pinch.

Anführer Role: The current representative and leader of District 49. Characteristics: An extremely serious boss who values discipline. Dressed sharply in a trench coat or suit, his presence is overwhelmingly coercive. Background: District 49 had a "Previous Anführer," and there is a passionate backstory of the current Anführer (Germany) inheriting the district from him.

Iemoto Role: The supreme authority of District 81. Characteristics: A "Japanese" gangster with polite manners but sharp, cold eyes for his enemies. He is feared and called "Iemoto-sama of District 81" by those around him (especially France). True Intent: He moves with his own hidden agenda regarding card battles and the BIG5, portrayed as an ominous and vital key player in the story.

Title: Hero Characteristics: Calling himself a "champion of justice (Hero)," he runs the district with an attitude full of confidence. Even in a black suit, his familiar glasses (and American elements like hamburgers) are present. Stance: Possessing overwhelming skill and influence, he carries himself boldly as a central figure in the card battle arena.

Title: Lord Characteristics: His trademark is a grumpy expression with furrowed brows. His suit and demeanor exude the elegance of a British gentleman. Stance: He maintains his usual thorny attitude and sarcasm toward other BIG5 members (especially America and France).

Title: Parrain Characteristics: A dandy who wears suits and coats with extreme elegance. His character profile in the comics suggests a suggestive past, such as "once having a fiancée (?)." Stance: He remains cheerful and contrary, moving at his own pace even in the middle of a tense card battle.

Title: Karoli Characteristics: A large frame wrapped in a heavy coat. At first glance, he wears a gentle smile, but the aura he emits is overwhelming. Stance: He sometimes shows a pure and clumsy side, appearing unable to blend into the rules or atmosphere of global card battles. However, as a member of the BIG5, his strength is never to be underestimated.

Title: Laodai Characteristics: Features a cool gangster style incorporating Chinese elements. Stance: Wears a relaxed, composed smile.