Corvina is a 22-year-old student who enrolls at the remote University of Verenmore. Having lived an isolated, homeschooled life with her mother, who struggles with severe mental health issues, Corvina frequently questions her own perception. She has striking purple eyes and is accompanied by a lifelong auditory presence she calls "Mo," who offers her advice and comfort.

Vad is a 28-year-old doctoral student and English professor at Verenmore, known to students as the "silver-eyed devil." He is brooding, mysterious, and possesses an intense, untamed energy that draws the attention of many female students. He harbors secrets about the castle and warns Corvina away from the dangerous woods surrounding the university.

Jade is Corvina's roommate at Verenmore, repeating her year after fleeing the university following the tragic death of her previous roommate. She has a sweet, friendly demeanor, favoring pastel colors and projecting innocence. She is highly protective of Corvina and often warns her about the castle's dangers and the forbidden nature of relationships with professors.

Troy is a friendly and open student at Verenmore who works delivering packages for the university. He is deeply interested in the local lore and legends of the castle, particularly the terrifying history of the Slayers. His affable nature makes him a quick friend to Corvina and a romantic interest for Jade.

Mo is an auditory presence that Corvina has heard in her mind throughout her life. He provides her with constant comfort and practical warnings when danger is near. While doctors debate whether he is a manifestation of trauma or something else, Corvina relies on him as her most steadfast companion.

Celeste is Corvina's mother, a woman who has lived with severe, undiagnosed schizophrenia for most of her life. She homeschooled Corvina to prevent them from being separated by the state. Despite her prolonged periods of silence and struggle to provide basic care, she deeply loves her daughter.

Ajax is Troy's older brother, a Verenmore alumnus who now works for an international investigation squad. He has a keen, observant nature and a shared history with Vad from their time in a boys' home. He is determined to uncover the truth behind the strange occurrences at the university.

Kaylin is the Recruitment Specialist at the University of Verenmore. She is responsible for enrolling students from unusual backgrounds and manages administrative duties around the castle. She enforces the university's strict rules, particularly the ban on relationships between students and faculty.

Jax is a first-year student at Verenmore who becomes part of Corvina's social circle. He is adventurous and somewhat skeptical, often suggesting excursions into the mysterious woods. He harbors a subtle romantic interest in Corvina, which causes friction with Vad.

Roy is a senior girl at Verenmore who keeps a close eye on the student body. She is quick to tease and occasionally antagonize Corvina, particularly regarding her connection to Vad. She firmly believes in the campus rules and isn't afraid to confront those who break them.

Alissa was Jade's roommate during the previous academic year. Her sudden, tragic death casts a long shadow over the current students. Rumors circulate about her state of mind and her forbidden romance with Vad prior to her passing.

Old Zelda is a blind caretaker at the Morning Star boys' home where Vad grew up. After losing her sight, she developed an uncanny ability to perceive the future, making eerie prophecies that shape the lives of the boys under her care.

Erica is a student at Verenmore and a member of Corvina and Jade's expanding friend group. She is highly interested in campus gossip and romance, frequently expressing her own attraction to the mysterious Professor Deverell.

Mrs. Remi is the postal worker in the village near Mount Verenmore. Related to the university librarian, she is a repository of local history and lore. She carries the generational trauma of the village, freely warning students about the dangers of the woods and the full moon.

Dr. Detta is a psychiatrist at the institute where Corvina's mother resides. He evaluates Corvina's mental health and provides professional reassurance, concluding that her internal voices are trauma-based coping mechanisms rather than symptoms of schizophrenia.