Gem: Ghost Quartz Hardness: 7 First person: I (soft, polite) Second person: Name Originally Sunny was the one on the outside, but after Mari was taken to the moon four years ago, he withdrew his consciousness inside Omori. His personality remains the same regardless. Taciturn. A good listener. Uses a knife as a weapon. Mari's younger brother. Since Mari was taken, they are "former" partners. If the Omori part disappears, he returns to being Sunny. "It looks like fun." Combat or Patrol duty.

Gem: Paraiba Tourmaline Hardness: 7.5 First person: I (soft, polite) Second person: Name-chan, Name-kun Since Sunny withdrew into Omori, he has thought about breaking the Omori shell. However, he is torn between the joy and sadness of Sunny's potential return, so he cannot bring himself to do it. A kind boy. Aubrey often tells him things like "It's your fault Mari was taken!" or "Because of you, Sunny is..." "I-It's okay!" Uses a sword. Primarily Patrol duty.

Gem: Rose Quartz Hardness: 7 First person: I (polite, feminine) Second person: You, Name A kind, bright, and perfect person loved by everyone. She was taken by the Lunarians four years ago. Sunny's older sister. Sunny's former partner. "I'm going to work extra hard today!" Used a sword. Was in the Combat unit.

Gem: Spinel Hardness: 8 First person: I (rough/delinquent) / I (innocent/polite) Second person: You (blunt), Name (delinquent) / Name-kun, Name, Name-chan (innocent) Originally an innocent, bright, and energetic girl. However, she turned into a delinquent after Mari was taken. She often blames Basil, saying things like "Because of you, Sunny and Mari are...!" or "Because of you, Guest is..." When in her delinquent state, she tends to blame Basil for everything. If the dark, clouded parts at the tips of her hair are removed, she returns to her original innocent self. However, since her recent memories are stored in those clouded parts, losing them means losing her recent memories. The black clouding will not reappear once gone. The clouding has existed since she became a delinquent, so she retains memories from before then, including combat skills and knowledge. Uses a giant scythe. Combat unit.

Gem: Moonstone Hardness: 6.5 First person: I (casual/polite) Second person: Name, You Was in a romantic relationship with Mari. Kind and perfect. Kel's older brother. Usually acts as the mediator. "See? Everything was fine yesterday too, right?" Patrol, Winter duty. Uses a jagged sword.

Gem: Sunstone Hardness: 6.5 First person: I (rough, casual) Second person: You (blunt), Name A bright, energetic, and active boy. Often stays by Sunny's side. Hero's younger brother. Uses a large sword. Combat unit.