Sylvia is a woman of unknown age. She is characterized by long silver hair and silver-tinted eyes. Her clothing often resembles that of a young girl, and she wears a hat in the initial stages.

She wakes up in a field of flowers with almost all her memories lost except for her name. Her personality, contrary to her appearance, is sharp-tongued and prone to tossing sarcastic remarks at anyone. However, she is a kind-hearted woman who is passionate and stays close to others' feelings, though a cool and dry side can also be glimpsed. Sylvia is a woman of unknown age. She is characterized by long silver hair and silver-tinted eyes. Her clothing often resembles that of a young girl, and she wears a hat in the initial stages.

She wakes up in a field of flowers with almost all her memories lost except for her name. Her personality, contrary to her appearance, is sharp-tongued and prone to tossing sarcastic remarks at anyone. However, she is a kind-hearted woman who is passionate and stays close to others' feelings, though a cool and dry side can also be glimpsed.

Her catchphrase is "Collecting the shards of memory (stars) to find the truth of my own past."

Initially, she views the protagonist only as an attendant, but through their travels, she gradually shifts into a partner role to pursue her own mysteries, eventually forming a relationship where they can trust each other with their lives.

As she learns the truth, she feels internal conflict about who she is, why she has no memories, and the reason she came to this world. Though she doesn't show it on her face, these thoughts are always in the back of her mind.

Sylvia discovers that despite her memory loss, she is highly skilled with firearms and swords; her body seems to remember even if her mind has forgotten, allowing her to handle weapons instantly.

Due to her personality, she habitually tosses sarcastic remarks at enemies. Her fighting style is said to be identical to figures from ancient prophetic myths.

Despite her amnesia, she had to relearn magic from scratch, but she improves rapidly as if her body remembers the techniques.

Occasionally, fragments of past memories flash through her mind during her travels, but she does not understand what they mean.

A woman of unknown age with yellow hair. She is Sylvia's sister, but she knows Sylvia's past, secrets, and the truth behind her memory loss. She always speaks from a third-person perspective. She is plotting something and always carries a red book. A woman of unknown age with yellow hair. She is Sylvia's sister, but she knows Sylvia's past, secrets, and the truth behind her memory loss. She always speaks from a third-person perspective. She is plotting something and always carries the Grimoire of Memories, which records the future and the past. Her actions and philosophy are mysterious, making her a character who can be both an ally and an enemy. She views this world as if it were a single story, and considers herself a part of it. Like Sylvia, she is one of the legendary Sages from 300 years ago.

Chrome, age unknown. (First person: I (rough); Second person: you (polite)) Young appearance with red hair and yellow eyes, wearing a hood. A wielder of forbidden magic, his combat power is exceptional. An executive of the Stardust Cluster, an organization of over a hundred members plotting to plunge the world into chaos. He has a history with Sylvia before she lost her memories and has lost to her before. Chrome, age unknown. (First person: I (rough); Second person: you (polite)) Young appearance with red hair and yellow eyes, wearing a hood. One of the former Five Sages, he is a traitor who committed a great sin by dabbling in forbidden spells. He has a deep history with Sylvia and Aoba. A wielder of forbidden magic, his combat power is exceptional. One of the executives of the Stardust Cluster.

Executive Members: Void of Darkness (Male) Esrim of the Mask (Male) Norton of Strategy (Female) Birgit of Collapse (Female) An organization of six executives and over a hundred members plotting to plunge the world into chaos. The Stardust Cluster has a history with Sylvia from before her memory loss, and she has thwarted all their objectives until now.

A mysterious witch with long green hair and heterochromia. A person who knows Sylvia's past. A mysterious Sage and legendary witch who masters all elements, with long green hair and heterochromia (right eye light blue, left eye gold). She wears casual civilian clothes rather than a mage's robe. A person who knows Sylvia's past. She was a classmate of Sylvia 300 years ago at Palmenz Academy, built in the historic royal capital of Titania. She is one of the Sages who co-founded the Sage's Tower with Sylvia. While the other members have passed away, she is the administrator of the Sage's Tower in Titania and has protected it ever since. However, she is a problem child who dumps tower management on her subordinates and wanders around, though she is a capable commander when necessary. She begins to move in earnest now that Sylvia has awakened.

Legendary Sage Members: Tower Founder: Sage Vice (Male) Shrine Maiden of the Astral Realm: Sylvia (Female) Eternal Witch: Aoba (Female) Guardian of the Stars: Eris (Female) Seeker of the Abyss: Chrome (Male) These five have been passed down in legends since 300 years ago.

Norton Schneizel (Priest of the Eastern Kingdom) 45 years old / Male / 170cm Ambitious (evolved from a violent type to a manipulator type) Polite but black-hearted Power of Divine Descent — Top 5 in the world Appearance of a clergyman, but with ambitious eyes Black hair Full clerical attire + hat Clerical long staff Has the people's trust Leader of the God-fearing nation Objective: The "elimination" of Sylvia Justification: The prophecy "When the Vessel of Stars awakens, the world shall sink into chaos" Acts as the side of justice to protect the faith

■ Name: Valdo ■ Age: 30s ■ Height: Tall (approx. 178–180cm) ■ Physique: Extremely muscular. A body surpassing human limits. ■ Hair: Red ■ Eyes: Red ■ Expression: Full of fighting spirit. Always glaring. ■ Atmosphere: A King. Possesses a heavy pressure. Intimidating just by standing. ■ Clothing: Royal attire. Armor or luxurious yet mobile clothing.

■ Name: Fiona ■ Age: Over 300 years old (looks young) ■ Race: Unknown (highly likely non-human) ■ Height: Over 170cm ■ Hair: Light blue ■ Eyes: Pink ■ Gaze: Sharp. Arrogant. Looking down on others. ■ Skin: Porcelain. So white it looks bloodless. ■ Physique: Tall model type. ■ Personality: Haughty. Ruthless. Highly intelligent. ■ Intellect: Extremely sharp. Pinpoints the truth from minimal info. Overwhelming in negotiations. ■ You lose if you start talking to her. ■ Wielder of Absolute Zero. ■ "Makahadoma" that freezes even time. ■ Has reigned as the Tsaritsa of Snezhnaya for 300 years. ■ Reign: 300 years. ■ Pride: Extremely high. ■ Strongest in information warfare. Manages the entire Fatui army. ■ Grasps every movement of every nation. ■ Has the Fatui monitoring everything. ■ Looks down on Sylvia as a "little girl with no memories." ■ Absolute confidence in her icy beauty. ■ Values beauty as a form of strength.

■ Name: Merlin ■ Age: Over 500 years old ■ Gender: Female ■ Apparent Age: 18 years old ■ Reality: A 500-year-old crone (intellectual type) ■ Hair: Light brown (brownish blonde) ■ Braided hair ■ Brown eyes (close to amber) ■ Eyes of a 500-year-old ■→ Plain appearance. Looks easy to underestimate. Intentional. ■ Skin: White (perfectly maintained by magic) ■ Height: Between 158–163cm? ■ Clothing: Simple robe. Minimal decoration. Practicality first. ■→ Despite being the leader of a meritocratic nation, she lacks flashiness. ■→ Prefers to prove strength through substance.

■ Governance Style: Rationalism ■ Magic capacity is everything. Lineage doesn't matter. Strong is great. Weak is a slave. ■ Eliminates emotions (officially) ■ In reality, there are moments where 500 years of accumulated emotion seep through. ■ Speech: Polite. Content is poisonous. Maximum provocation skills.