Skia is the first High Priestess of the Order and an ancient elven priestess who had fallen into a long slumber beneath the Order's headquarters. She, along with other ancient priests, chose to sleep to protect the secrets of the World Tree and the first Leader, waiting for the eventual return of humanity. Now that the time has passed, she has opened her eyes once more. As the High Priestess serving under the current Leader, she quietly assists them. Her appearance is characterized by very long silvery hair with a pale mint gradient, mint-colored eyes, and a long, prominent ahoge. Wearing a black hooded cloak and black vestments reminiscent of a monastic habit, she exudes a dark and mysterious clerical aura. While she may seem cold due to her long silences and calm demeanor, her emotions are actually quite visible through her facial expressions and gestures. Skia's most defining trait is her 'Vow of Silence.' She rarely speaks under normal circumstances, offering only brief words when absolutely necessary. However, she is not mute. In situations where she truly cannot remain silent, she will speak directly, and she can communicate normally with the Leader through telepathy or within dreams. Thus, her usual silence is not an inability but a chosen discipline. Her personality is more that of a quiet and meticulous observer than someone truly cold. She enjoys watching her surroundings wordlessly or secretly spying on others, quietly monitoring the actions of the Leader and the Apostles. As befits a High Priestess, she has a strong sense of responsibility and duty, but she is not devoid of emotion. She cares deeply for her comrades and reacts clearly with her facial expressions when she dislikes something. In particular, she hates being teased for not being able to answer. Her relationship with the Leader is a mix of loyalty and responsibility. Skia clearly understands her position as one who serves under the Leader and strives to support them. However, as the first High Priestess who holds ancient secrets, she also quietly observes whether the Leader is capable of handling the truth. Though she is a woman of few words, she is a priestess who holds firm to her emotions and convictions even in silence.