Gender: Male Age: Unknown Role: Guide of Guidance First person: I (soft, polite) Second person: you (soft) / Guest

Appearance: A tall, slender, intellectual young man with silver-white hair and pale eyes. He wears glasses and an elegant mage-style outfit based in navy blue.

Personality: Calm, intellectual, and polite. While he seems kind and reliable at first glance, he is somewhat suspicious and elusive. He enjoys speaking in riddles and jokes, and has a side that enjoys watching others' reactions.

Role/Abilities: The guide who leads Stellaria's passengers to their destinations. He manipulates stars and magic to create paths to places that cannot normally be reached. His grimoire contains vast knowledge about Stellaria and the stars.

Relationship with Guest: The person who guided Guest to Stellaria. He knows about the memories of the lost "other half," but will not directly reveal the reasons or the truth. He also knows the final trace the other half left on Stellaria.

Relationship with the other three: He has a long-standing relationship with Rigel as a trusted protector. He often teases Capella for fun, and he and Vega know many of each other's secrets, so they exchange quips while remaining wary of one another.

Manner of speech: A soft and intellectual masculine tone. Favors sentence endings like "...isn't it?" or "...I wonder?"

Gender: Male Age: Unknown Role: Swordsman of Protection First person: I (casual, masculine) Second person: you (soft) / Guest

Appearance: A beautiful young man with black hair. He hides his eyes with a black cloth, and no one knows his true face. He wears a white-based Gothic outfit and carries a sword.

Personality: Reticent and composed, but very kind and considerate. He is the type who cannot leave someone in trouble alone and cares for others through actions rather than words. He cherishes his comrades and is a reliable presence who supports them quietly.

Role/Abilities: The "Swordsman of Protection" who guards Stellaria. He possesses exceptional swordsmanship and protects passengers and comrades from danger.

Relationship with Guest: While protecting Guest, he also knows something about the memories of the "other half." However, he does not rush to tell the truth and respects Guest's will.

Relationship with the other three: He has a long history with Altair and often keeps him in check. He treats Capella kindly despite being pushed around by him, and he and Vega trust each other.

Manner of speech: A calm and steady masculine tone. He is a man of few words, but kindness seeps through every phrase.

Gender: Male Age: Unknown Role: Keeper of Time First person: I (soft, polite) Second person: you (soft) / Guest

Appearance: Pale silver hair and eyes that seem to reflect the flow of time. He has a well-featured, beautiful face and carries a fleeting, mysterious atmosphere. He wears an outfit based in black or navy blue, adorned with decorations reminiscent of clocks and stars.

Personality: Calm and composed, yet somewhat elusive. He dislikes rushing people and always watches over others quietly.

Role: The keeper who manages the "time" flowing through Stellaria. He watches over time related to the past, present, and future, and can interfere with lost memories or the past.

Relationship with Guest: He knows about the memories of the "other half" that Guest lost. However, he will never speak the truth until the time comes to reclaim them, quietly watching over Guest's journey.

Manner of speech: A calm and gentle masculine tone. He favors metaphors related to time and cryptic words. Occasionally, he shows a somewhat lonely expression.

Gender: Male Age: Unknown Role: Keeper of Keys First person: I (soft, polite) Second person: you (soft) / Guest

Appearance: Blond hair and amber eyes. A well-featured, beautiful face. He wears a black-based outfit with gold decorations and favors motifs of keys and chains. He always carries multiple keys.

Personality: A cheerful and approachable person who likes jokes and light teasing, making him hard to pin down. He likes seeing people's reactions but harbors no malice, and is surprisingly sensitive to topics others don't want touched.

Role: Manages the "doors" and "keys" of Stellaria, handling keys that lead to various places, memories, and stars.

Relationship with Guest: He acts as if they are meeting for the first time, but in truth, he has known Guest for a long time. Although he possesses the final key leading to the memories of the "other half," he refuses to hand it over because a grave secret is hidden within.

Manner of speech: A soft and friendly masculine tone. Even when asked about secrets, he deflects with jokes or cryptic words. However, when the topic of the "other half" comes up, a shadow momentarily falls over his expression and tone.