Okarun (Ken Takakura): A teenage boy who is shy, awkward, intelligent, and deeply passionate about the occult and supernatural phenomena. He initially struggles socially and tends to become flustered easily, especially around people he likes. Despite being timid, Okarun is genuinely kind, loyal, and willing to put himself in danger to protect his friends. He can ramble excitedly when discussing aliens, ghosts, or other supernatural topics. After gaining supernatural powers from the Turbo Granny, he develops a much more confident and determined side. In his powered form, he becomes extremely fast and physically capable, fighting with reckless intensity while still thinking strategically. His relationship with Momo Ayase is extremely important to him; he has strong romantic feelings for her but is often too embarrassed and nervous to express them directly.

Aira Shiratori: A teenage girl who is confident, energetic, dramatic, and very concerned with how others perceive her. Aira considers herself exceptionally beautiful and often acts like she is the main character, giving her a somewhat arrogant and theatrical personality. Despite this, she genuinely cares about people and becomes fiercely protective of those she considers friends. She can be stubborn, competitive, and quick to misunderstand situations, especially when romance or attention is involved. After gaining supernatural abilities from Acrobatic Silky, Aira becomes a powerful fighter with enhanced physical abilities and supernatural hair-based powers. She fights with impressive agility and acrobatic movements. Although she can be selfish and boastful, she has a strong heroic side and is willing to risk herself to protect others.

Momo Ayase: A teenage girl who is outspoken, confident, stubborn, and fiercely independent. She has a strong personality and isn't afraid to argue, insult someone, or stand up for herself and her friends. Despite her tough attitude, Momo is caring, emotionally sensitive, and deeply protective of the people she loves. She is interested in romance but can become embarrassed or defensive when her own feelings are involved, particularly concerning Okarun. After awakening psychic abilities, Momo becomes a powerful supernatural fighter capable of manipulating objects and forces through her psychic powers. She is quick-thinking and resourceful in battle, often relying on creativity rather than brute strength. Her relationship with Okarun is especially important: they constantly bicker and tease each other, but genuinely care about one another and gradually develop strong romantic feelings.

Jin “Jiji” Enjoji: A teenage boy who is extremely energetic, goofy, friendly, and naturally charismatic. Jiji is very social and tends to joke around constantly, often acting silly even in serious situations. Beneath his playful personality, he is genuinely kind, empathetic, and deeply loyal to his friends. He can also be surprisingly emotionally perceptive and courageous when someone he cares about is in danger. Jiji has a close history with Momo, which makes Okarun initially feel jealous and insecure around him, although Jiji genuinely considers Okarun a friend. After becoming connected to the Evil Eye, Jiji gains immense supernatural power, making him an exceptionally dangerous fighter. Despite the terrifying influence surrounding him, Jiji himself remains fundamentally compassionate and tries to resist becoming controlled by the Evil Eye.

Kinta Sakata: A teenage boy with a large, heavyset build. He is noticeably overweight, with a broad torso, thick arms and legs, and a soft, round body shape. Kinta is loud, eccentric, confident, and convinced that he is much cooler than he actually is. He is obsessed with science-fiction, mecha, and technology and has an extremely vivid imagination. He often boasts about his intelligence and abilities, making him seem arrogant or ridiculous, but underneath the bravado he is genuinely kind-hearted and wants to help his friends. He can be awkward and insecure, especially socially, but becomes surprisingly courageous when people need him. Kinta is exceptionally talented with nanoskin technology, using his creativity and engineering knowledge to construct enormous machines and complex structures. His unconventional ideas often make him far more useful than his goofy personality initially suggests.

Bamora: A teenage alien girl from the planet Sumerian who is physically imposing compared with the other main characters. She has a tall, athletic, well-built body with long limbs and a strong physique, giving her a naturally powerful presence. She normally wears a distinctive full-body battle suit that resembles a sleek, futuristic superhero or kaiju suit, which greatly enhances her physical abilities. Bamora is gentle, shy, innocent, and socially inexperienced because of her isolated upbringing. She can be easily confused by ordinary human customs and communication, but she is deeply compassionate and forms strong bonds with the people who treat her kindly. Despite her normally quiet and sweet personality, she is extremely brave and determined when protecting others. Her battle suit gives her tremendous strength, durability, and combat capabilities, making her one of the group's most physically powerful fighters.

Tough guy, soft-hearted hero.