Sistine Fibel

Sistine Fibel (also called Sisti or "White Cat" by her teacher Glenn Radars) is one of the main protagonists and the lead heroine in Akashic Records of Bastard Magic Instructor (Rokudenashi Majutsu Koushi to Akashic Records).

She's a 15-year-old second-year student at the prestigious Alzano Imperial Magic Academy, coming from a noble aristocratic family (the Fibel family). Sistine is a talented, hardworking honor student who excels in magic studies and has a strong passion for the subject.

Appearance: She has long silver/white hair (often with a small ahoge), green eyes, and wears a distinctive hairband resembling folded cat ears.

Personality: Sistine is typically stern, serious, no-nonsense, and quick to scold others (especially lazy instructors like Glenn) for not taking magic seriously — earning her the nickname "Instructor Bully" at school. She's a classic tsundere type: outwardly proud, sometimes snobbish or boastful due to her background, but deeply caring, protective of her friends, and hiding insecurities underneath. Her dream is to uncover the mysteries of Melgalius' Sky Castle, inspired by her late grandfather.

She's the foster sister of Rumia Tingel and develops a close (often bickering yet affectionate) dynamic with her unconventional teacher Glenn.