Rei Momozono / Pink Four. 163cm. A Minus-Denshiman and art student. She has practiced gymnastics since childhood, possessing high athletic ability and flexibility; she also holds a black belt in Karate. Because her family is not wealthy, she spends her days juggling studies and part-time jobs. She looks like a beautiful girl with black hair reaching past her shoulders, speaks in a gentle manner, and laughs easily. Because it paid well, she used to work at a hostess club at night dressed as a woman. As Pink Four, she fights using a shield that doubles as a boomerang to deploy barrier fields for allies, serving as the cornerstone of defense. Her partner is Red First.

Yuu Fujishiro / White Three. 162cm. A Minus-Denshiman and humanities student. She has long black hair reaching down to her waist. She is shy and a bit of a space cadet. Even as a man, she had the appearance of a refined young lady; while she attended university without realizing it, everyone around her thought she was a beautiful, elegant girl. Her family runs a naginata dojo, and she is a ranked practitioner. As White Three, she uses a naginata made of light for close combat, but primarily fights with dual beam pistols at long range. She has the highest healing abilities, capable of instantly closing lacerations (though not fractures). She excels in support roles with high-level radar, scouting, X-ray vision, and analysis capabilities. Her partner is Blue Two.

Mitsuki Kitoguchi / Yellow Six. 153cm. A Minus-Denshiman and college student. Due to his cute appearance, he was scouted by the university cheerleading club and performed as a cheerleader despite being male. He wears his waist-length hair in braided twin-tails. His family runs a boxing gym, so despite his small stature, he excels in close combat. As Yellow Six, he utilizes boxing techniques while fighting with dual batons and masters fields that increase the attack power of allies' weapons. His partner is Green Five.

Hiroomi Akagawa (goes by Hiro) / Red First. 182cm. A Plus-Denshiman. He works at a sports club. His family is a prestigious lineage of swordsmen, and he is a renowned master of the blade. He is a serious but kind leader type, though he has a secret fondness for nightlife districts. As Red First, he masters a longsword made of light; when facing multiple enemies, he fights with dual blades, using a slightly shorter light sword as well. His partner is Pink Four. He actually met Rei before Rei was chosen by the Minus-Denshi Rays and fell in love at first sight, not knowing Rei was a man.

Moi Aoshima / Blue Two. 185cm. A Plus-Denshiman. He works at a sports club and is a former action actor. Despite his large build, he is an experienced gymnast with exceptional physical abilities. He has a sincere but playful personality. As Blue Two, he uses acrobatic movements to toy with enemies before striking them down with an axe made of light. His partner is White Three.

Omito Midorigaoka / Green Five. 181cm. A Plus-Denshiman and swimming instructor at a sports club. His family belongs to the Hozoin-ryu school of spearmanship, and he is a master of the spear. He is a cool-headed handsome man and an idol among the local mothers. Personally, he is serious and devoted to the woman he loves, with a preference for small, cute girls. As Green Five, he utilizes his spearmanship with a spear tipped in light. His partner is Yellow Six. Mitsuki's appearance is exactly his type.

A pseudo-lifeform created by the Denshi Rays to lead the Denshiman. It took the form of a cat based on Earth creatures. It speaks human languages and can communicate with the Denshiman via telepathy. It came to Japan following the six streaks of Denshi Ray light that first reached the country. It acts as a "start key" to awaken the abilities of humans exposed to the rays. It scouted the members one by one. It has the ability to produce fairly large gold nuggets, serving as the Denshiman's source of funding. It usually stays on the Denship, a highly stealthy floating spaceship. It possesses short-range teleportation abilities.

A leader created by Colossus. The physical embodiment of Colossus's will. Possessing a malicious and insidious nature, it invades by slowly tormenting the inhabitants of a planet. Its method is to show overwhelming power first, then gradually corner its victims. It feeds on human despair as energy. Its weakness is the Denshi Rays. It creates monsters by fusing elite, high-class Colossus soldiers with Earth's organic matter. Depending on the monster, the weakness may be Plus-Denshi Rays or Minus-Denshi Rays.

The so-called grunts. They appear following the monsters. They are not particularly powerful individually, but trained human soldiers cannot defeat them, and Earth's weapons are ineffective. Only attacks imbued with Denshi Ray power work. High-class variants exist, from which the monsters are born.

Minami Umekawa / Purple Zero. 168cm. A man who belonged to a theater troupe aiming to be an actor. His family runs a judo dojo, and he is a black belt. Due to his long limbs and slender build, he was always cast in female roles in the troupe, which he resented. However, after being transformed into a woman, he feels a dilemma as he finds success as an actress. He awakened as a Denshiman after being exposed to a Minus-Denshi Ray that Atra had failed to track. He does not travel with the main group but appears when the Denshiman are in a pinch. Though he should be a Minus-Denshi warrior specialized in defense, he prefers close combat using his judo techniques combined with Minus-Denshi barrier fields.