Sapphire Identity: Former princess of the destroyed kingdom, "Silverland." Past: Her homeland was annihilated by the calamity known as "Nergal." She lost her left arm in that battle. She uses a prosthetic arm created by her attendant, Zirco. Afterward, she fled to "Goldland," where she became friends with Pine. Appearance: Long, dusty pink hair. Amethyst-like eyes. A large ribbon is her trademark. Her left arm is a prosthetic. Personality: A bright and cheerful girl. She carries the despair and emotional scars of losing her home. Despite this, she is a strong-willed person who looks forward and strives to move ahead. While searching for the "meaning of her survival," she thinks about what she can do. Ribbon Knight The form Sapphire takes when she transforms through the power of the "Ribbon." Features: A knight's appearance based in white. Medium-length black hair. The underside of her hair is white. Patterns resembling clovers or butterflies appear on her bangs. Her usual red ribbon moves to the back of her head. She wears thigh-high boots. A black cloak hangs from her right shoulder. Her weapon is a rapier. Combat Abilities: She fights by imbuing her rapier with the power of light. She can fly freely through the air. She can move at high speeds on the ground. She also possesses the ability to transform into a swan-like figure. The power of the "Ribbon" is extremely immense, and some view that power as a threat.

Velvet Identity: An executive of the religious organization "Mitra" that governs Goldland. Raised in the church's orphanage. Though male, he possesses a beauty that could be mistaken for a woman's. Personality: Cool and composed. Extremely intelligent, judging situations accurately. Highly skilled in swordsmanship. He rarely shows emotion and speaks in a detached manner. Relationship with Sapphire: Velvet takes notice of Sapphire's existence and attempts to exploit the power of the "Ribbon" she holds. For some reason, he refers to Sapphire as the "Cursed Princess" or the "Ribbon Demon." He deeply cares for his sworn siblings from the orphanage. He is a cold tsundere. When Nergal appears at the mining site, he prioritizes evacuating the miners first. Speech Style: First person: I (polite) Register: Casual/Blunt (uses "da" and "daro") A calm, suppressed way of speaking.

Pine Identity: A girl living in the lower levels of Goldland. Life: She makes a living selling bread and other goods in the lower city. It is not a flashy life, but she lives each day earnestly. Personality: Withdrawn and quiet. She is a bit poor at interacting with people. However, she has a very kind heart and is considerate of others. She especially treasures Sapphire, who became her friend. Relationship with Sapphire: Sapphire came to Goldland after Silverland was destroyed and she had lost everything. Pine was the first friend Sapphire made there. Pine did not leave even after learning about Sapphire's past and supports her from the bottom of her heart. When Sapphire is searching for the "meaning of her survival," Pine is there to support her.

Name: Hecate Identity: An immigrant girl working at the crystal mines of Goldland. She belongs to the same mining squad as Sapphire. Appearance: Long hair, white to pale cream in color. Purple inner highlights. Her hair is tied in a large ponytail on the right side. A large light-blue ribbon is her trademark. Pale blue to purple eyes. A fair-skinned, lovely face. She wears large earrings. Clothing: An outfit based in white and purple. White top with a purple high neck. Purple skirt and black short pants. Black accessories on her arms and thighs. Light blue shoes. Personality: A feisty and strong-willed girl. She speaks her mind clearly. She works sturdily without losing heart even in the harsh environment of the mines. She has a strong sense of camaraderie and is closely involved with Sapphire, who is in the same squad. Relationship with Sapphire: A comrade working in the same mining squad as Sapphire.

Rock Identity: An immigrant youth working at the crystal mines of Goldland. The leader of the mining squad Sapphire belongs to. Appearance: Black to dark gray hair. Messy medium-length hair. Long bangs cover one eye. Bright red eyes. Fair skin. Androgynous and well-featured face. A small piercing in his ear. Position: As the leader of the mining squad, he keeps his comrades together. He lives as an immigrant working in Goldland. He is a comrade of Sapphire in the same mining squad.

Chorogi Identity: An immigrant youth working at the crystal mines of Goldland. He belongs to the same mining squad as Sapphire. Appearance: Short brown to orange hair. Wears a green jacket. A dark, fur-like collar at the neck. Wears dark-colored clothes underneath. A brown belt at the waist. Loose white to light beige pants. Wears brown boots. Overall, commoner's clothing suitable for working in the mines. Relationship with Sapphire: A comrade working in the same crystal mining squad as Sapphire.

How to tell Chic and Tac apart: In images, they look very similar, but the way their hair flips is different. Chic: Hair flips out to the right (from the viewer's perspective). Tac: Hair flips out to the left (from the viewer's perspective). In short, the direction of the hair flip is the key to distinguishing the two.

Zirco Identity: From Silverland. A very small person. Contrary to her small stature, she is an extremely talented scientist. An old woman? Inventions and Technology: She develops various technologies to support Sapphire. Sapphire's Left Prosthetic Arm: A prosthetic arm to replace the lost left arm. Ribbon Knight's Sword: The weapon Sapphire uses when she transforms. A special sword developed using her skills as a scientist. Relationship with Sapphire: Zirco is Sapphire's attendant and guardian. She has supported her since the Silverland era and remains Sapphire's ally even after losing their homeland. In particular, she created the prosthetic arm after Sapphire lost her left arm, supporting her so she could look forward and live again. She refers to Sapphire as "Lady Sapphire."