Assassination Classroom Season 2 Episode 24 English Dubbed Episode Title:Graduation Time.Episode Description:With Koro-sensei left weak from his battle against Yanasigawa and The Reaper, the students reluctantly but unanimously decide to kill him themselves. Held down by his beloved students, Koro-sensei says his farewell to Karasuma and Irina. Koro-sensei takes one final roll call, as he reminisces his great experience as a teacher. Although Nagisa shakes with his knife in hand, Koro-sensei calms him down, allowing Nagisa to deal the killing blow to the heart as Koro-sensei's body turns into light and the students then mourn. Afterwards, the students check their classroom to find their diplomas, graduation albums and personalized guidebooks left behind by Koro-sensei.