Season 2
25 listed episodes · First aired January 8, 2016

Season overview
Class 3E and while some things have changed, the class assignment is still the same: kill their teacher before the end of the year. Easier said than done since Koro Sensei's made it clear he won't go down without a fight.
Episodes
Koro Sensei and his students try some matchmaking at the end of their island trip. Class 3-E's eventful summer ends with a taste of pure festival fun.
E2Kaede TimeKaede comes up with a delicious plan of attack, Class 3-E plays an intense game of Cops and Robbers, and Koro Sensei is accused of a serious crime.
E3Itona Horibe TimeKoro Sensei faces off against the powerful, tentacled Itona and his handler Shiro yet again, revealing more of his teaching philosophy along the way.
E4Spinning TimeItona endears himself to the boys in Class 3-E as he shows off his assassination creation. The students call each other code names for an entire day.
E5Leader TimeCompetition between the elite A Class and downtrodden E Class heats up at the school sports festival, with Isogai's livelihood hanging in the balance.
E6Before & After TimeAfter an accident, the E Class winds up doing a whole different kind of studying off campus. But will they have a chance to bone up for the midterms?
E7Reaper Time, Part 1A well-intentioned act leads to a falling-out with Professor Bitch. Soon the E Class finds itself facing off alone against a formidable assassin foe.
E8Reaper Time, Part 2When Koro Sensei and Mr. Karasuma reach the Reaper's hideout, it's anyone's guess who'll come out on top--especially with wild-card Irina in the mix.
E9Round Two TimeThe students consider their future career options. Nagisa struggles to come to terms with his talent; meanwhile, his mother has her own plans for him.
E10School Festival TimeEach class at Kunugigaoka Academy is competing for the highest sales totals in the school festival. How can the E Class even hope to stand a chance?
E11End-of-Term Time - Second PeriodIt's exam time again, and the cream-of-the-crop A Class is a bigger threat than ever before. Top-ranking Asano, however, has something up his sleeve.
E12Think Outside the Box TimeThe end-of-term exams come down to one doozy of a final problem. Principal Asano comes to Koro Sensei with a little wager that has a lot riding on it.
E13Let Live TimePrincipal Asano recalls his first foray into the world of education. In the drama festival, the E Class puts on a play with a few unexpected twists.
E14Secret Identity TimeFollowing the drama festival, the E Class learn that one of their classmates is hiding a big secret connected to Koro Sensei's past!
E15Confession TimeKoro Sensei begins to come clean about his background after a tense and terrifying encounter with a student who has her own reasons to kill him.
E16Past TimeFollowing the traumatic story of Koro Sensei's past, the E Class is left reeling after learning revelations about his past deeds and identity. As the gather themselves with this new information, it begins to affect thei…
E17Discord TimeThe E class is divided over whether to kill Koro Sensei or try to save him. Koro Sensei suggests a way of settling the issue between the two sides.
E18Outcome TimeThe battle amongst the E-Class comes down to the final two on each side: Karma vs. Nagisa. But, a new obstacle throws a wrench into the E Class's plans.
E19Outer Space TimeClass 3-E has agreed to try and save Koro Sensei. In order to do this, they must track down confidential information -- information that takes the class to another height.
E20Valentine's Day TimeNagisa remains uncertain about his future as high-school entrance exams loom over him. It's time for Class 3-E to celebrate Valentine's Day!
E21Trust TimeIt's time for the last project from Koro Sensei before the E-Class closes out the year, but the government's own plans and threatens to get in the way.
E22Happy Birthday TimeThe students fight to see their teacher one last time. A figure from Koro Sensei's past arrives with a serious grudge against the super-creature.
E23Final Boss TimeA pitched battle between two super-creatures threatens to harm the students of Class 3-E. Can Koro Sensei protect them while fighting for his life?
E24Graduation TimeTime is running out, and the E Class students must decide once and for all whether to kill the teacher who so changed their lives over the past year.
E25Future TimeGraduation day: one of life's chapters ends and another begins as the students and teachers of Class 3-E go on to forge their own paths in the world.