Episode 36

Secret Identity Time is the thirty-sixth episode of the Assassination Classroom anime and the fourteenth episode of Season 2. It first premiered in Japan on 7 April 2016.

Summary
As the end of the second semester draws near, Kaede Kayano launches a surprise attack on Korosensei using tentacles she had implanted in herself for the whole year, and wants to kill him for the murder of her elder sister Aguri Yukimura, the former teacher of Class 3-E. As the class try to deal with the sudden revelations, Kayano thinks back to how she planned her revenge before challenging Korosensei to a fight that may cost Kayano her own life.

Differences between Manga and Anime

 * When Kayano blows open the hole for Koro-sensei to a pitfall trap, the trap wall purely soil. In the manga the walls was covered by thin steel.
 * Nagisa had bruises and scratches, and had to be carried out by Isogai after Kayano activates her trap. In the manga, he was unscathed and did not need anyone's support.
 * The class ground was shaken when Kayano makes a hole for a pitfall trap while on manga the class ground was shaken when Koro-sensei makes his way out through beam cells.
 * When Kayano first met Chairman Asano in his office, she instantly broke his laptop with a hidden baton. The manga instead has her breaking Asano's possessions with his own hands
 * Ono was present in the office instead of another teacher in the manga.
 * When the class watches one of Kayano's TV shows, they are viewing it through each of their cellphones. In the manga they watch it through Ritsu's interface monitor.
 * When Aguri and Kayano talk about having the same genes, they were at a cafe. The manga depicts them discussing it while walking together.