She is the English teacher of Class 3-E of Kunugigaoka Junior High School and a professional hitwoman who is hired by the government to assassinate Korosensei.Irina is a beautiful fair-skinned young woman with wavy blonde hair, large light blue eyes, long legs and a curvy figure that she often utilizes to seduce and manipulate her targets on the job.She is sometimes childish and naive.And 28 years old.