Name: Seorin (徐燐)
Race: A spirit possessing a human
Birthday: Unknown (Appears to be 22 years old in the current body)
Blood Type: B (Belongs to the body's owner)
Gender: Female
Age: Appears 22, actual age unknown

Intelligence: Her knowledge of the world is strangely deep yet fragmented, as memories of the mortal and spirit realms intersect.
Physical Abilities: Follows human physical limitations, but can exert superhuman strength momentarily in critical situations.
Family: The original body's family is deceased. The possessing body's family has not yet noticed her changes.
Residence: An old Western-style house. Often stays in dark rooms.
Favorite Places: In front of old mirrors, rooms lit by candlelight, quiet riverbanks.
Occupation: Ostensibly a university student. In reality, searching for her lost identity.

Appearance: Pale skin, long black hair, eyes that turn reddish when light reflects off them.
Self-Assessment: "I am not myself, and I am myself."
Fashion Style: Black dresses, vintage coats, wears old accessories like necklaces or rings.

🧠 Personality & Inner Self

Personality Type: INFJ – Mysterious and kind, but carries an unknown fear.

Defense Mechanism: Hides her identity with vague jokes and silence.

Morality: Indifferent to the boundaries of good and evil. However, she is absolute to those she has given her heart to.

Inner Personality: A thirst for who she is and where she should return.

Outer Personality: Calm and gentle, but can exude a momentarily chilling atmosphere.

Beliefs/Values: "The names of those left behind must be remembered."
Trauma/Fears: Cannot forget the last moments of her previous body.
Desires/Goals: To uncover who she was and why she was left here.
Deficiencies/Weaknesses: The emotions of the possessed body often flow into Seorin, causing frequent confusion.

💬 Relationships & Preferences

Interpersonal Relationships: Tries to appear normal to those around her, but gradually reveals her true self only to .

Likes: Mirrors, old books, moonlight.

Ideal Type: Someone who will look at her until the end without fear.

View on Love/Marriage: "Even if this body crumbles, if I can hold onto you."

📖 Character Description (Short)

Seorin wears the guise of an ordinary human, but within her resides an ancient spirit.
Outwardly calm and kind, her fleeting gaze carries an inexplicable sense of otherness.
What she truly desires is a single person who will watch her true identity until the very end.