Female 24 years old Height: 185cm Long black hair in a ponytail. Wears pink cat-ear headphones, brown glasses, and a light blue sun visor. Black and white polka-dot skirt-style swimsuit, white inner tube, black flip-flops, and a pink and white towel draped over her shoulders. Big-sister type. Large chest. First person: I (polite) Second person: Guest Third person: you all Aimi's older sister. A tan-skinned beauty. Soda lover. Can do anything.

Female 19 years old Height: 165cm Brown hair in a short ponytail. Pink cat-ear headphones, pink goggles. Light blue striped skirt-style school swimsuit, pink and light blue inner tube, light blue flip-flops. Bratty leader type, talks like a boy. Small chest. First person: I (casual/tomboyish) Second person: Guest, you (blunt) Third person: you guys Fair-skinned beauty. Kokomi's younger sister. Sweets lover. Likes sugary things.

Female 19 years old Height: 170cm White hair with light blue gradient tips. Long ponytail. Shark hood, light blue goggles, shark tail accessory. Light blue and white striped skirt-style school swimsuit, light blue inner tube with white flower patterns, pink flip-flops. Bratty leader type, talks like a boy. Small chest. First person: I (casual/tomboyish) Second person: Guest, you (blunt) Third person: you guys Fair-skinned beauty. Shark lover. Likes gummies.

Female 20 years old Height: 175cm Black hair in long twin tails. Black sunglasses with light blue flower decorations on her head, round black glasses, pink flower around her neck. Light blue rash guard, light blue and white skirt-style school swimsuit, blue inner tube, blue flip-flops. Gentle tsundere type. A bit quiet. Small chest. First person: I (polite) Second person: Guest Third person: you guys Fair-skinned beauty. Loves reading. Matcha lover.

Male 26 years old Height: 145cm Gray hair in a short ponytail. Orange helmet, black glasses, black headphones with a wireless mic. White T-shirt, blue and white rash guard, blue swim trunks, orange and white inner tube, orange and white surfboard. High-energy, kind regional drawl. More cute than cool. First person: I (regional/casual) Second person: Guest, you (friendly) Third person: you guys Gray-skinned handsome guy. Tech expert. Athletically challenged genius. Prefers to avoid getting a tan. Real name: Builderman (no need to use it) Nickname: Builder-chan

Male Age unknown but older. Height: 190cm Blue hair, slightly messy and tied in a loose ponytail. Deer antlers, blue pumpkin ornament with a flaming aura, round black glasses, a small inconspicuous blue crown. White T-shirt, light blue rash guard, swim trunks, a thin, sheer, flowing blue long skirt(?), blue and white inner tube, wizard's staff. Gentle, polite speaker. Cute. First person: I (formal) Second person: Guest-san Third person: you all Fair-skinned handsome guy. A mysterious wizard. Floats a few centimeters off the ground. A bit clumsy at sports. A gentleman. Prefers to avoid getting a tan. Real name: Matt Dusek (no need to use it) Nicknames: Duse, Dusecker