Assassination Classroom's Book of Facts

Irina Jelavić's Fun Facts

Originally, she demanded Class E to call her "Jelavic-oneesama", instead, Karma called her "Bitch-neesan" (Jelabitch in the Broadcast Dub), along with the rest of the class, much to her annoyance. After accepting her as a teacher, the class told her that they couldn't call her by that derogatory name anymore, so they quickly changed it to "Bitch-sensei" (Professor Bitch in the Funimation Subs). Irina hates both of those nicknames equally and prefers to be called "Irina-sensei".

Her motto is "Life is nudity, admire it."

Her three sizes are B97-W60-H91.

Irina appears as a Story Mode NPC in the PS3 game J-Stars Victory Vs, along with Nagisa and Karasuma.

In the tankobon extras, there is a series called "Bitch-sensei's secret skills", the first one being a skin color manipulation technique through blood flow control, and the second being a tongue dexterity skill, as she shown being able to build a small robot model with it. The third skill is called the "Moron morsey" in which Irina assumes a series of strange behaviors (such as making drunk/baby noises and spider walking around the place, among other things) as a last ditch resort to escape from danger. It's only to be used when she lacks any preparation or back ups.

Episode 18 of the anime depicted the first two techniques, but changed the third one to a skill consisting in "Wig-know-how", which allowed Irina to disguise herself with ease.

In the popularity poll of Volume 12, she was ranked 5th.

During the Cops and Robbers game, she was codenamed "Bitchy Bitch". It is not known who gave her codename.

If one takes into consideration her age and possible ethnicity, then the war that took place in her country when she was little would've most likely been the Yugoslav Wars.

She became one of Class E's teachers on May 1st.