Forgotten [Assassination Classroom: Karma x OC x Gakushuu]

Kuronuma Aruma. She is an assassin class S ranking 8th in Japan. Famous also throughout Asia. Aruma also a student who attended Kunugigaoka Junior High School and submit to the 3-E class. Of course the goal is to kill Koro-sensei, but kill Koro-sensei is not the main goal. Her main goal is to remember the sweet memori...