Thread:Halo1081/@comment-25993554-20150226141549/@comment-25993554-20150226154742

Okay, we have translation from the /a/ board : >Kayano says that the most effective way of assassinating Koro is by simply making him fall in a trap and that her tentacles are more skillful than Shinigami >Kayano fails at her attempt to assassinate Koro-sensei who uses the energy beam(similar to Itona) to get out of the pitfall(pic related). >Everyone is shocked looking at Kayano as she reveals that Kayano Kaede was just an alias and she is actually the little sister of Yukimura Aguri and calls Koro-sensei a murderer. >Nagisa comments how her appearance has changed now that she has stopped her act. >Kayano declares that she WILL come back later to kill Koro now that she is confident her tentacles have matched his rhythm and says she'll contact them when the time comes about the place, then she leaves. >Itona comments how it's impossible for a person to be so calm with tentacles without any maintenance since those things literally feel like some kind of bug raging within your brain >Isogai and Mimura talk about a child prodigy (Migaku Sera Haruna?) who could do any kind of act easily and how perfect the hairdo and appearance was that they never realized. (They're probably comparing here) >For some reason Shiro appears and Nagisa asks him who was Kayano at which Shiro answer that Yukimura Akari, little sister of Yukimura Aguri took the false alias and blended in the classroom, he expected her to have tentacles and comments that he has an idea of when the tentacles were stolen from their lab that is when her sister died. >Shiro appraises her tenacity for understanding the tentacles structure and handling it all by herself in such a short amount of time. >He comments just how amazing her will power is that she was able to smile and act like that without breaking a sweat for 1 year considering just how painful it is to have tentacles. >Properly using all the facets and not letting out her murderous intent, he praises her as the very best assassin that can come out of Class E.

tl;dr: Kayano (Akari) is just an edgy teen who stole the tentacles from Shiro's Lab used it upon herself and perfected in order to take revenge for her sister who was killed by Koro.