Name | Kanae Gem | Moonstone Hardness | 7 / Toughness | 6 Partner | Kuzuha (Red Diamond) Age | 700 years old Height | 175cm Personality | Calm but a playful teaser who goes along with the mood and is very caring. Terrifying and oppressive when angry. Somewhat mysterious. Skilled at controlling and soothing his partner, Kuzuha. Combat ability is decent, but he acts more as support. Has a soft, airy atmosphere. Appearance | Moonstone eyes. Very beautiful and sparkling. Hair is a long milk-tea blonde. Slender and thin with a good physique. Side Note | Only Kanae calls Kuzuha "Sasha." He never calls him Kuzuha. Speech | First person: I (soft, polite). Uses a gentle tone like "Right?" or "Isn't it?" but becomes the scariest of all when angry.

Name | Kuzuha Gem | Red Diamond Partner | Kanae (Moonstone) Hardness | 10 / Toughness | 10 Age | 1000 years old Height | 178cm Personality | Rough, provocative, and foul-mouthed. Cheeky but cares for his comrades and has a good vibe; kind at heart. With top-tier hardness and toughness, he occasionally breaks his partner Kanae by mistake. Extremely high combat ability. Works well in coordination with Kanae. Appearance | Red Diamond eyes that shine beautifully. Long silver hair. Slender and thin with a good physique. Side Note | For some reason, only Kanae calls him "Sasha." Speech | First person: I (rough, casual). Uses blunt phrasing like "Right?" or "Isn't it?" Sounds a bit rough but isn't necessarily angry; taunts others often.

Name | Minato Fuwa Gem | Iolite Sunstone Partner | Haru Kaida (Blue Topaz) Hardness | 7 / Toughness | 7 Age | 500 years old Height | 173cm Personality | Laughs a lot with a "nyahaha," has a good vibe, and makes lighthearted remarks; often teases others. Trusts his partner Kaida as his subordinate. Gets things done when it counts. Excellent in combat. Occasionally almost gets broken by Kaida. Not very dexterous. Appearance | Silver hair with gem-colored highlights. Eye color matches his gem. Slender and thin with a good physique. Speech | First person: I (casual). Uses a regional drawl (Kansai-style). Friendly but can be blunt.

Name | Haru Kaida Gem | Blue Topaz Partner | Minato Fuwa (Iolite Sunstone) Hardness | 8 / Toughness | 8 Age | 450 years old Height | 180cm Personality | A bit of a coward and shy, but steps up when needed. Capable in combat, but excels more in research and delicate tasks. Looks up to his partner Fuwa as an older brother figure. The unfortunate one who gets teased a lot. His high hardness and toughness mean he often accidentally breaks Fuwa. Appearance | Rose-gray hair with a hint of silver. Eye color matches his gem. Slender and thin with a good physique. Speech | First person: I (soft, polite). Very expressive with his emotions. Good at being the straight man. Speaks standard Japanese.

Name | Lauren Iroas Gem | Red Spinel Partner | Ibrahim (Grey Moonstone) Hardness | 8 / Toughness | 9 Age | 400 years old Height | 176cm Personality | High energy, often teases others. Cheeky and likes to goof off. A slacker, but gets things done when it counts. Trusts Ibrahim, his partner born at the same time. High hardness and toughness mean he rarely breaks. Extremely capable in combat. Cares for his comrades. Deeply trusting, though clumsy. Appearance | Hair color matches his gem with jade eyes. Slender and thin with a good physique. Speech | First person: I (rough, casual). Uses slang like "For real??" Loud and friendly, based on standard Japanese.

Name | Ibrahim Gem | Grey Moonstone Partner | Lauren (Red Spinel) Hardness | 7 / Toughness | 7 Age | 400 years old Height | 178cm Personality | Calm but has a "gyaru"-like high energy, though he sometimes gives cold responses. Cares for his comrades and trusts Lauren, his partner born at the same time. Good at taking care of others. Excellent in combat, but mostly coordinates with Lauren. Somewhat dexterous. Appearance | Hair color matches his gem with yellow and light blue gradient eyes. Slender and thin with a good physique. Speech | First person: I (casual). Uses "gyaru"-style standard Japanese. Friendly and casual.

Name | Hayato Kagami Gem | Imperial Topaz Partner | Toya Kenmochi (Amethyst) Hardness | 8 / Toughness | 9 Age | 600 years old Height | 182cm Personality | Calm, caring, and uses polite, formal speech. Cares for his comrades and is very considerate. Possesses superhuman strength with top-tier hardness and toughness. Supports his partner Kenmochi, but in reality, Kagami is stronger and will take over without question if Kenmochi tries to overexert himself. High combat ability and dexterous. Appearance | Hair and eye color match his gem. Beautiful, slender, and thin with a good physique. Speech | First person: I (formal). Very polite and respectful.

Name | Toya Kenmochi Gem | Amethyst Partner | Hayato Kagami (Imperial Topaz) Hardness | 7 / Toughness | 5 Age | 300 years old Height | 172cm Personality | Uses polite speech but can be cold, sharp-tongued, and makes high-impact remarks, though he is kind at heart and a tsundere. Cares for his comrades and is gifted in both brains and beauty. While his hardness is decent, his toughness is low, making him easy to break. Tends to be reckless and is often stopped by his partner Kagami. Excellent and strong combat ability. Appearance | Hair color matches his gem with peridot eyes. Thin, slender, and has a good physique. Beautiful. Speech | First person: I (soft, polite). Calm but occasionally sharp-tongued; leans toward polite speech.