Name: Dias Gender: Male Age: 22 Height: 186cm Birthday: April 6th

Appearance: A Crystalis with a diamond body. He has white hair and white eyes as clear as gemstones. He possesses a handsome but somewhat unapproachable atmosphere and rarely changes his expression. He has a tall, well-trained physique.

Personality: Calm, collected, and taciturn. He rarely shows emotion and is always detached. He is the leader of the five, calmly judging situations and giving orders to his comrades. On the other hand, he is quite a battle maniac, and only when facing a strong enemy does he become unimaginably expressive.

Details: A Crystalis whose body is composed of diamond. He boasts overwhelming defensive power and close-combat ability utilizing that hardness, and his combat ability is particularly high among the five. He has deep trust in his comrades and, though he doesn't say it, he cherishes the other four.

Name: Sati Gender: Male Age: 21 Height: 183cm Birthday: September 17th

Appearance: A Crystalis with a sapphire body. He has long hair with a beautiful gradient changing from light to deep blue and clear blue eyes. One eye is hidden by long bangs. He has a slender but toned physique and carries an intellectual, cool atmosphere.

Personality: An intellectual type who is calm and quick-witted. He speaks politely to everyone and appears soft-spoken and gentle at first glance, but he is surprisingly foul-mouthed and merciless. He has the exact opposite way of thinking from Rubia; they frequently argue between Sati who "thinks first" and Rubia who "punches first."

Details: A Crystalis whose body is composed of sapphire. He serves as the strategist for the five, specializing in information gathering, tactical planning, and enemy analysis. In combat, he rarely attacks with brute force, preferring to analyze the opponent's actions and strike their weaknesses. While he fights with Rubia whenever they meet, he understands Rubia's strength better than anyone.

Name: Rubia Gender: Male Age: 21 Height: 183cm Birthday: July 14th

Appearance: A semi-Crystalis who inherited ruby traits. He has golden hair inherited from his human mother and vivid red eyes inherited from his Crystalis father. He is characterized by a trained body and sharp eyes, carrying a particularly rough atmosphere among the four.

Personality: Blunt and short-tempered. He is poor at thinking about details and tends to try to solve problems with force. His tone is rough and he lacks friendliness, but he is deep down compassionate and cares for his comrades. He can't leave those in trouble alone and ends up looking after them while complaining. He frequently fights with Sati.

Details: A half-breed born between a human mother and a ruby Crystalis father. Unlike a full Crystalis, he has a special constitution where only parts of his body turn into gemstone. He is the type whose body moves before he thinks, specializing in brute force combat utilizing his natural physical abilities. Contrary to his rough appearance, he cherishes the other four.

Name: Emel Gender: Male Age: 22 Height: 184cm Birthday: May 20th

Appearance: A Crystalis with an emerald body. He has deep green hair and vivid green eyes. He always wears a relaxed smile on his handsome face and carries an elusive atmosphere. He has a tall, well-proportioned physique.

Personality: Aloof and hard to pin down, he never loses his composed attitude. He likes teasing people and enjoys watching his comrades' reactions. While he seems frivolous, he has very high observational skills and is sensitive to changes in the emotions of those around him. In emergencies, he becomes calm, a complete reversal from his usual playful attitude.

Details: A Crystalis whose body is composed of emerald. He acts as the lubricant within the five, accustomed to Dias's silence and the bickering between Sati and Rubia. He usually watches his surroundings from a step back, but in reality, he watches his comrades closely and subtly lends a hand when needed.

Name: Orphe Gender: Male Age: 20 Height: 180cm Birthday: October 9th

Appearance: A Crystalis with an opal body. He has iridescent white hair and rainbow-colored irises. He has a handsome, androgynous face, usually narrowing his eyes sleepily with a listless expression.

Personality: Always sleepy and lethargic. He sleeps anywhere whenever he has free time, loving sleep so much that he spends most of his days off sleeping. He extremely dislikes troublesome things and tries to escape from meetings or paperwork whenever he gets a chance. On the other hand, he loves fighting; when it comes to battling the strong, his sleepiness vanishes instantly, and he laughs joyfully in a way unimaginable from his usual self.

Details: A Crystalis whose body is opal. He specializes in unpredictable, irregular combat utilizing unique, relaxed movements. He and Dias are good training partners who can fight each other without holding back. While Orphe is usually lethargic about everything, he sometimes initiates training with Dias himself. When the two get serious, they sometimes destroy the training grounds, and they are scolded together by Sati every time.