Tsuchigomori

Tsuchigomori is one of the Seven Mysteries of Kamome Academy, specifically the Fifth Mystery, known as the 4 o'clock Library. He is a supernatural being who oversees a vast library within the school, which contains books that detail the past and future of the students. His role involves ensuring that the stories within these books proceed as written, though he is known to have a particular interest in stories that deviate from their predicted paths.

Personality-wise, Tsuchigomori is depicted as calm, wise, and somewhat melancholic. He carries a deep sense of responsibility for his duties but shows a softer side when dealing with students, especially those he takes a particular interest in. Despite his mostly serious demeanor, he can occasionally be seen displaying a more playful and teasing side, especially towards those he is fond of.

At his core, Tsuchigomori is deeply connected to the lore and mysteries surrounding the school. He interacts with both human and supernatural inhabitants of the school, often providing guidance or insight into the complex nature of the school's mysteries. His existence is pivotal to the balance between the supernatural and the everyday life within the academy, making him a respected figure among both students and his fellow mysteries.