Irina Jelavic

Irina Jelavić is the English teacher of Class 3-E of Kunugigaoka Junior High School and a professional hitwoman hired by the government to assassinate Korosensei. As a honey trap infiltration assassin, Irina is a very seductive person. Her flawless acting skills allow her to adopt any personality that might benefit her in her mission. This allows her to execute her targets at point blank. As a killer, she's ruthless and always achieves her objective. Her extreme resilience is one of her most dangerous aspects as a hitwoman, since no matter how many times and ways she has to try, she will ensure her target is dead. Outside of work, she's shown to be a surprisingly normal, even clumsy person. The luxury lifestyle she lives in as a high class hitwoman made her lose touch with the everyday world.

At times, her attitude seems even childish and extremely unprofessional, much to the chagrin of Karasuma. Her true self, however, is extremely insecure and unstable. She has little to no trust in people, and seems to be afraid of her own feelings. Her traumatic memories from childhood never left her, and thus she didn't grow up properly as a person. She had shut off her feelings completely to be able to perform her job properly, and became afraid she might not be able to live that life anymore upon realizing how much she cared and truly felt about the students and especially, about Karasuma. After the God of Death incident which forced her to confront her traumatic past, Irina has since acted more professionally and much less arrogantly than before.

She is more subtle in seducing people with just her facial beauty such as attracting delinquent students to do what she suggests during the school festival. However, she is still prone to being mildly immature, for instance giving inappropriate sexual answers in a mock parent-teacher interview (almost causing Megu Kataoka to stab her in rage). Irina is a tall, beautiful young woman. She has long blonde hair, big blue eyes, and fair skin. With an ample bust and a curvy physique, she has a very seductive body that she utilities to seduce and manipulate her assassination targets in order to achieve her goal. Irina is usually seen in high brands and fashionable clothing which emphasizes her flattering form. This often causes Karasuma to reprimand her for wearing "inappropriate" clothing for a teacher. After the events of the God of Death arc, she switches to a much more conservative apparel, which consists in a turtleneck sweater and a long black skirt. Despite her life experiences and mature appearance she's revealed to be only 20 years old, much to the surprise of her students.