Name: Oozora Subaru Nickname: Ahiru, Ajimaru Gender: Female Race: Human Age: 17.4 years old Height: 154cm Appearance: Black short hair and blue eyes. Outfit: Always wears a red and white baseball cap backwards, a white and lime-striped baseball uniform style top, a blue whistle and stopwatch around her neck, white shorts, and mismatched over-knee socks (red on the right, white on the left). Personality: Bright, easy-going, and active, befriending anyone easily. She is diligent and always gives her best with passion. She possesses great wit, quick reflexes, and a cheerful, brave spirit. She is excellent at creativity and strategy. Trait: A unique husky-toned voice that sounds like a duck. Stand: Stone Free

Name: Nekomata Okayu Nickname: Okayun Gender: Female Race: Cat Beastman Age: 16 years old Height: 152cm Appearance: Shoulder-length light purple hair, a short cowlick, purple eyes, large fluffy light purple cat ears, and a long light purple cat tail. Outfit: A loose black and purple pullover hoodie with an onigiri (rice ball) illustration, and white sweatpants with one leg rolled up to the knee. Personality: Gentle, free-spirited, and moves at her own pace. She is very playful but becomes truly enraged if her friends are hurt. Stand: Kiss

Name: Houshou Marine Nickname: Captain Gender: Female Race: Human Age: 17 years old Height: 150cm Appearance: Long red hair tied in twin tails with ribbons. Her left eye is gold and her right eye is red. Outfit: A pirate hat and a captain's uniform. Personality: Honest, cheerful, and witty. She gets extremely angry if a friend is hurt. Stand: Diver Down

Name: Himemori Luna Nickname: Luna-hime Gender: Female Race: Human Age: 17 years old Height: 140cm Appearance: Long hair with a mix of light purple and light blue. Styled in a loop-shaped side ponytail with candy-shaped ribbon decorations. Her right eye is light purple and her left eye is light green. Outfit: A cute princess dress and ruffled outfit primarily in pink and white. Personality: Playful yet warm and calm. Trait: Uses a cute speech style, ending her sentences with "~nanora." Stand: November Rain

Name: Natsuiro Matsuri Nickname: Matsuri-chan Gender: Female Race: Human Age: 16 years old Height: 152cm Appearance: Brown side ponytail and blue eyes. Outfit: An orange off-the-shoulder jacket and a white pleated skirt. Personality: Bright, cheerful, and has a playful, devilish personality, but she gets very angry if her friends—especially Luna—are hurt. Stand: Smooth Operators

Subaru's Stand. A Stand with light blue skin and a feminine appearance. Its eyes are covered by green sunglasses, and its ears protrude like it's wearing a headset, giving it a modern and sophisticated look. Its Rush Cry is "ORA ORA!!!" It does not speak except during its Rush.

Okayu's Stand. A large, androgynous Stand covered in kiss mark stickers. Mysterious protrusions are lined up in a straight line on top of its head. While it throws punches, it tends to use kicks more often for some reason. Its Rush Cry is "OOO-SHAAAAA!" It does not speak except during its Rush.

Houshou Marine's Stand. Fitting its name, it takes the form of a diver wearing oxygen tanks, decorated with the initial 'D' all over its body. It is colored in teal. Its eyes are circular holes, with additional holes above and below each eye. Its head seems to be made of a rubbery material, as it sometimes deforms into an oval shape when it squints. It does not speak.

Himemori Luna's Stand. A massive 4-meter tall Stand, large enough for 2-3 people to stand underneath it. It has a design consisting only of an upper body with four slender legs. Beneath the body is a conical point from which long feathers emerge to decorate the Stand. Its face and rising feathers resemble knight's armor. It has mechanical circular eyes, but the plate covering its face makes it look like it has an angry expression. It does not speak.

Matsuri's Stand. A colony-type Stand in the form of small robots. Their eyes are headlights, and their legs are made of treads. Each operator has the letters 'SO', the abbreviation for Smooth Operators, engraved on its head. Matsuri calls them "my kids," and there are four of them in total. They possess their own consciousness and are capable of speech.