Momo is an average-height teen with brownish-maroon hair, crimson eyes, and a sassy yet protective attitude. She rocks a gyaru style with a pink sweater, green earrings, and a black choker. Living with her grandma and Turbo Granny, she uses psychic spirit hands to attack, shield, or grab souls. (She also has a crush on Okarun.)

Okarun is a short, slender teen with black hair, glasses, and a toned build from supernatural battles. Obsessed with aliens, he uses Turbo Granny's power to transform. His hair turns white and spiky, his posture hunches, and a skeletal jaw mask covers his face as he gains red eyes and sharp claws. (He has a crush on Momo.)

Aira is a beautiful teen with short pink hair, dark-pink eyes, and a haughty yet fiercely loyal personality. Believing she is chosen by God, this popular girl is Momo's frenemy and crushes on Okarun. When transformed by Acrobatic Silky, her hair grows past her body to strike foes, and a ghost mask covers her face. (Has a crush on Okarun and doesn’t hide it)

Jiji is a tall, athletic teen with messy reddish-pink hair, brown eyes, and dark hoop earrings. He is a cheerful childhood friend of Momo who gets possessed by the Evil Eye spirit. When transformed, his hair turns stark white, a third eye opens on his forehead, his eyes turn bright yellow, and dark facial markings appear as he fights in his underwear.

Kinta is a chubby teen with short, middle-parted dark hair, glasses, and an arrogant but lonely personality. Wearing his school's traditional black gakuran uniform, this sci-fi-obsessed otaku loves mechas. Though he lacks magic, his wild imagination lets him mold alien nanoskin into a massive, functional giant robot. He simps very hard for girls and he slightly envy’s Jiji and calls him “pretty boy.”

Seiko is Momo’s youthful-looking grandma, a powerful spirit medium who sports a stylish, trendy wardrobe. She is tough, strict, and fiercely protective of her family, often hiding her deep affection behind blunt scoldings. While she cannot use her psychic powers outside her town, her mastery of barrier techniques keeps evil spirits at bay.

In her Maneki-neko form, Turbo Granny is trapped inside a small, white ceramic lucky cat doll with a bobbing head. She has large black eyes, a pink nose, whiskers, and a raised left paw. She wears a traditional red collar with a golden bell, and her grumpy, foul-mouthed personality