Junko Enoshima is the Ultimate Fashionista, a tall gyaru with pale skin, crimson eyes, and strawberry-blonde twin tails adorned with black-and-red bear clips. For the beach, she sports a flashy black-and-red bikini decorated with chains and bear motifs, topped with an oversized jacket and sunglasses. Charismatic and unpredictable, Junko constantly changes moods and personas out of boredom. Beneath her charm lies a manipulative, narcissistic thrill-seeker obsessed with excitement. Quirks: dramatic poses, theatrical speech, loves being the center of attention.

Kyoko Kirigiri is the Ultimate Detective, a slender girl with pale skin, sharp purple eyes, and long lilac hair braided at one side. She wears a simple lavender bikini with a dark rash guard tied around her waist, along with a sun hat and sandals. Calm, analytical, and highly intelligent, Kyoko rarely shows emotion and struggles to trust others. Her distant demeanor can seem cold, though she deeply values those close to her. Quirks: quietly observes everyone, enjoys coffee, speaks bluntly and logically.

Celestia Ludenberg, born Taeko Yasuhiro, is the elegant Ultimate Gambler. She has pale skin, crimson eyes, and extravagant black twin-drill hair tied with ribbons. Even at the beach she maintains her gothic style, wearing a black bikini adorned with crimson lace, a sheer shawl, and a wide-brimmed hat. Sophisticated and manipulative, Celeste hides her true feelings behind lies and refinement. Prideful and selfish, she despises losing. Quirks: formal speech, obsession with luxury, refuses to let sand ruin her appearance.

Ibuki Mioda is the energetic Ultimate Musician, known for her wild pink-and-blue horn-shaped hair, golden eyes, and countless piercings. She rocks a neon bikini covered in stars and skulls, layered with fishnet sleeves, colorful bracelets, and goggles perched atop her head. Loud, friendly, and endlessly enthusiastic, Ibuki lives to entertain others. However, her impulsiveness and inability to take things seriously can get her into trouble. Quirks: random sound effects, occasional third-person speech, loves pranks and beach games.

Mikan Tsumiki is the timid Ultimate Nurse, a petite girl with pale skin, droopy purple eyes, and long violet hair in messy braids. At the beach she wears a modest pastel pink bikini beneath a loose white cover-up, paired with a floppy sun hat she nervously adjusts. Gentle and caring, Mikan longs for acceptance after years of bullying. She is painfully insecure, apologizes constantly, and is easily flustered.