Assassination Classroom Episode 13 Recap & Characters (Spoiler-Free)

Episode Summary

Talent Time

Three months into assassination training, Karasuma introduces his old acquaintance Akira Takaoka as the new PE instructor. Takaoka's brutal regime, kneeing Maehara, slapping Kanzaki and demanding absolute obedience, provokes resistance.

Karasuma chooses Nagisa to fight Takaoka with a real knife; Nagisa wins with a feint behind Takaoka and pins him down. Chairman Asano dismisses Takaoka for using violence, and the class celebrates Karasuma's return as PE teacher by making him treat them.

• Takaoka's arrival and harsh regime

  Karasuma introduces Akira Takaoka, who wins the students over at first, then announces a punishing noon-to-9 p.m. schedule, knees Maehara, and slaps Kanzaki for refusing him.

• Real-knife challenge

  Takaoka, seeking dominance, demands that Karasuma pick a student to fight him with a real knife while he is unarmed. Karasuma chooses Nagisa, who approaches calmly and pins Takaoka down with the knife at his throat.

• Takaoka's dismissal

  Takaoka demands a rematch and tries to strike Nagisa, but Karasuma blocks him. Chairman Asano arrives and dismisses Takaoka for using violence, reminding him that he controls the school.

• Karasuma's treat

  Karasuma returns as PE teacher; the class talks him into treating them, Irina snatches his wallet, and Korosensei crawls after them begging to join.

Recent Timeline

• Irina's mock assassination contest (Episode 10)

  When Irina's master Lovro came to pull her out, Korosensei proposed a one-day contest: whichever of Irina and Lovro first 'killed' Karasuma with an anti-sensei knife would win. Karasuma saw through Irina's drugged drink and disarmed Lovro's frontal attack. At lunch Irina pinned him under a tree with a hidden wire; he blocked her knife but gave in to her pleading and let her land it, and Lovro let her stay.

• Itona vs Korosensei after-school duel (Episode 11)

  Itona Horibe, the second transfer student, arrived with his guardian Shiro, called Korosensei 'brother' and challenged him to a ring duel after school in which stepping out meant death. Tentacles burst from Itona's hair, and Shiro's reaction-slowing beam plus the cost of shedding and regrowing let Itona take the lead, but Korosensei tricked him into hitting anti-sensei knives on the floor and tossed him out of the ring wrapped in shed skin. When Itona raged, Shiro knocked him out and took him away; Korosensei's tentacle hand was destroyed on Shiro's anti-sensei robe.

• Class E asks for assassination training (Episode 11)

  After the duel, the students admitted they had been hoping someone else would do the job and asked Karasuma for more assassination training so they could kill their teacher with their own hands. He began tougher after-school drills for volunteers.

• Class E vs baseball club exhibition match (Episode 12)

  At the ball game tournament, Class E's boys played an exhibition match against the baseball club with Korosensei coaching. Bunts loaded the bases and Sugino's triple put them three runs ahead, until the chairman made the club's coach feign illness, took over, and shut down the bunts with an all-infield shift. In the last inning, with the bases loaded on the club's copied bunts, Karma and Isogai fielded at zero distance in front of Shindo, who lost his nerve, and Class E won. Korosensei called it one win each against the chairman and set the finals as the decider.

• Takaoka dismissed after knife challenge (Episode 13)

  Takaoka, who had taken over PE with violent training, proposed a duel in which a student would face him with a real knife while he stayed unarmed. Nagisa defeated him and pinned him with the blade at his throat. Chairman Asano then dismissed Takaoka for ruling by violence and fear, reminding him that the Ministry of Defense has no say over the school's teachers.

Character Graph

Nagisa Shiota (Nagisa)

Class 3-E student

Class 3-E student who keeps notes on Korosensei's weaknesses. Small and unassuming, he beat Takaoka in the real-knife challenge, and Karasuma recognized him as a natural-born assassin.

• Assassin

  Carried out the knife-and-grenade attack in episode 1 and accepts that he and his classmates are assassins whose target is their own teacher.

• Real-knife challenge

  Walked up to Takaoka as calmly as if walking to school, feinted at his neck from behind and pinned him with the knife at his throat.

• Korosensei (Mentor, Mixed)

  His homeroom teacher and assassination target; Nagisa respects him as a good teacher while aiming to kill him.

• Ryoma Terasaka (Colleague, Mixed)

  Classmate who saddled him with the plan and the grenade for the first assassination attempt in episode 1.

• Akira Takaoka (Other, Hostility)

  Beat Takaoka in the real-knife challenge after Takaoka hurt Kanzaki and Maehara.

Karma Akabane

Class 3-E student

Class 3-E student back from a school suspension who is sharp and fearless; he was the first to wound Korosensei and chose to stay in Class E because assassination is more fun. Karasuma notes his sly, mischievous skill in knife training.

• Government briefing

  While suspended, he was briefed by a Ministry of Defense official on the classified assassination and warned that his memory would be wiped if he talked.

• Stance toward Class E

  Chose to stay in Class E because assassination is more enjoyable than returning to his former class; scored a perfect mathematics score despite the changed questions.

• Challenge to teacher

  Challenged Korosensei to admit that leaving over the failed top-fifty goal was an escape from assassination.

• Korosensei (Other, Mixed)

  His assassination target, whose genuine care has begun to change Karma's feelings, though he still means to kill him and teases him over his failures.

Ryoma Terasaka (Terasaka)

Class 3-E student

Burly Class 3-E student who hangs around with Muramatsu and Yoshida; in episode 1 he handed Nagisa the plan and the grenade for the first attack.

Tomohito Sugino (Sugino)

Class 3-E student

A Class 3-E student who was on a baseball team before E-Class placement and is working on a curveball style of his own.

• Pitching style

  Tries to replicate a famous pitcher's style, then develops his own curveball style after Korosensei's advice to be more flexible.

• Korosensei (Mentor, Affinity)

  Coach who trained the boys for the match by pitching at 300 km/h.

Kataoka

Class 3-E student

Class 3-E student who, along with Okano, caught Karasuma's eye in knife training with her unpredictable athleticism.

Kanzaki

Class 3-E student

Class 3-E student who once hid her gaming skill from her family, who disapproved of such interests. In episode 13 she told Takaoka she preferred Karasuma's lessons and was slapped to the ground.

• Change of self

  Realized after Korosensei's influence that moving forward with confidence matters more than clothes, interests, and labels adopted under others' influence.

• Korosensei (Mentor, Affinity)

  Teacher whose words after the abduction helped her stop worrying about where she belongs.

• Akira Takaoka (Other, Hostility)

  Instructor who slapped her to the ground when she refused him, saying she preferred Karasuma's lessons.

Maehara

Class 3-E student

Class 3-E student who protested Takaoka's noon-to-9 p.m. training schedule and was kneed in the chest for it.

• Akira Takaoka (Other, Hostility)

  Kneed by Takaoka for protesting his training schedule.

Irina Jelavić

English teacher · Assassin

Twenty-year-old professional assassin hired to kill Korosensei who now teaches Class 3-E English. She feigns affection for him after he 'rescues' her and uses her charm to set traps, though it is Korosensei who is smitten. After winning Lovro's mock-assassination test against Karasuma, she stays on at the school.

• Assassination plan

  Sets traps for Korosensei with her henchmen, which he sees through; he punishes her, leaving her humiliated and vowing revenge.

• Change of heart

  After seeing how happy the students are under Korosensei's methods, she begins to second-guess leaving and later apologises to the class.

• Advice to the girls

  Urged the girls to appreciate living in a country removed from the dangers she had known and to develop their appeal.

• Mock assassination

  Attempts to kill Karasuma with a drugged drink and a tripping ruse, then with hidden wires and a knife, and wins by coy pleading.

• Korosensei (Other, Mixed)

  Her assassination target; she feigns affection to get close, but he sees through her traps.

• Tadaomi Karasuma (Colleague, Other, Mixed)

  Her supervisor and fellow teacher, whom she complains to about teaching; she won the mock assassination only because he finally let her.

• Nagisa Shiota (Other, Mixed)

  Student she kissed to demand the notes he keeps on Korosensei's weaknesses.

• Lovro Brovski (Mentor, Mixed)

  Her master, who berated her for growing too close to Class E and let her stay after the mock assassination.

Lovro Brovski

Irina's master

Veteran hitman and Irina's master who arranged her posting at the school, then returned to test her in a mock assassination and allowed her to stay.

• Mock assassination test

  Ambushes Irina, berates her for becoming too familiar with Class E, and watches her in the mock assassination against Karasuma.

• Irina Jelavić (Mentor, Mixed)

  His pupil, whom he allowed to stay at the school after the mock assassination.

Tadaomi Karasuma

Ministry of Defense · PE teacher

Ministry of Defense officer overseeing the assassination who also teaches Class 3-E as assistant homeroom and PE teacher. When his old colleague Takaoka took over PE by force, he chose Nagisa for the real-knife challenge, blocked Takaoka's punch and returned as PE teacher.

• Government operative

  Explains that only world leaders know about the creature and that the class must kill him in secret.

• New PE teacher

  Meets the school chairman and takes on Class E as assistant homeroom and PE teacher, aiming to train the students in assassination.

• Stance toward the system

  Warned Korosensei that even he could not escape the chairman's system; suspected the chairman changed the scope to preserve that system and worried Korosensei would leave.

• Mock assassination duel

  Sees through Irina's drugged drink and tripping ruse and disarms Lovro; when Irina wires him to a tree, he stops her knife by strength, but finally gives in to her pleading and lets her win.

• Korosensei (Pact, Colleague, Neutral)

  The target he must see killed; the creature offered to teach Class 3-E himself and the government reluctantly accepted. He works beside him as a teacher while trying to kill him, and once worried he would leave after the failed exams.

• Irina Jelavić (Colleague, Mixed)

  Fellow teacher who targeted him in the mock assassination; he puts up with her antics but never lowers his guard.

• Akira Takaoka (Colleague, Hostility)

  Old colleague from the Ministry of Defense elite corps; when Takaoka took over PE and ruled by violence, Karasuma sent Nagisa into the real-knife challenge and blocked Takaoka's punch at him.

Korosensei

Class 3-E teacher · Super creature

Super creature who destroyed 70 percent of the moon, moves at Mach 20 and teaches Class 3-E as its homeroom teacher, vowing to destroy Earth next March. He trusted Karasuma's choice of Nagisa against Takaoka and later begged to join the class's treat.

• Assassination target

  He offered to teach Class 3-E himself, and the government reluctantly accepted on condition that he never harms the students; whoever kills him by March earns ten billion yen.

• Teaching style

  Teaches the class with unusual methods, praising effort and creativity while chastising weak tactics.

• Sibling claim

  Itona and Shiro claim he is Itona's brother, but he insists he was raised an only child; the claim remains unexplained.

• Tadaomi Karasuma (Colleague, Hostility)

  Ministry of Defense officer who relayed the government's reluctant acceptance of his offer to teach the class; a fellow teacher who openly wants him dead.

• Nagisa Shiota (Mentor, Mixed)

  Student who carried out the grenade attack in episode 1; Korosensei values his attempts and saw his talent against Takaoka, while Nagisa respects him as a teacher.

Chairman (Gakuho Asano)

School chairman

Chairman of Kunugigaoka who keeps Class E at the bottom so that fear of falling into it drives the other students. He took over the baseball club against Class E, and in episode 13 he fired Takaoka for ruling by violence, reminding him that teacher appointments are his, not the Ministry's.

• Stance toward Class E

  Insists Class E remain at the bottom in grades and treatment so fear of joining it motivates other students; ordered Korosensei to stop the class from defying outside students.

• Changed exam scope

  Reportedly personally taught the changed material to the other classes before the midterms.

• Club takeover

  Intimidates the club's coach into pretending to be sick and takes over the team.

• Korosensei (Hierarchy, Colleague, Hostility)

  Pressures Korosensei with his system, once challenging him to solve a problem in a second; as rival coach in the baseball match, his methods clashed with Korosensei's, who claimed victory.

• Akira Takaoka (Hierarchy, Hostility)

  PE instructor he dismissed for ruling by violence and fear, reminding him that the school answers to the chairman, not the Ministry of Defense.

Shindo

Baseball club

Star pitcher of the school baseball club, known for his fastballs, who leads the club's practice.

• Club star

  Considered the star player of the baseball club due to his fastballs.

• Tomohito Sugino (Friend, Affinity)

  Former teammate; they reconciled after the game and promised a rematch in high school.

Akira Takaoka (Takaoka)

Ministry of Defense

Old acquaintance of Karasuma who joins as the new PE teacher; formerly served with Karasuma in the elite corps of the Ministry of Defense, where he trained new recruits.

• Methods

  Imposes harsh training schedules and demands absolute obedience while adopting a fatherly demeanor; uses violence to instill fear.

• Attitude toward Karasuma

  Harbors hatred toward Karasuma and sees the PE post as a chance to topple him.

• Tadaomi Karasuma (Colleague, Hostility)

  Former colleague from the Ministry of Defense elite corps; Takaoka seethes with hatred for him and saw the PE post as a chance to topple him.

• Nagisa Shiota (Other, Hostility)

  Student who pinned him in the real-knife challenge; furious, Takaoka demanded a rematch and swung at him.

World Memo

• Crescent moon and the destruction of Earth

  At the start of the students' third year the moon suddenly exploded into a permanent crescent. The creature responsible has declared that he will destroy Earth next March in the same way, a standing threat that frames the assassination.

• Government-sanctioned assassination and reward

  The government reluctantly accepted the creature's own offer to teach Class 3-E on condition that he harms no students, and secretly tasked the class with killing him, since public knowledge would cause global panic. A successful assassination is rewarded with 10 billion yen.

• Anti-sensei weapons

  The government developed anti-sensei BBs and knives that are harmless to humans but break down the creature's cells, and supplies them to the students.

• Class E's place in the school system

  Kunugigaoka's Class E is sent every day to an isolated mountaintop campus and discriminated against as the lowest-ranked class, nicknamed the E-as-in-End Class. The chairman deliberately keeps it at the bottom in grades and treatment so that fear of falling into it drives the other students. To escape, a student must rank in the top 50 of the 186 third-years and get permission from their former homeroom teacher.

• Chairman's authority over teachers

  Staffing at the school is in the chairman's hands: he can dismiss teachers regardless of the Ministry of Defense, which has no such say over the school. He used this power to dismiss Takaoka for his violence.

• AI counted as student

  Ritsu, the autonomous fixed artillery, is registered as a student, so Korosensei must not harm her. He has told her that firing during lessons is not allowed.

• Anti-sensei material in clothing

  Clothing can be made of anti-sensei material, which destroys Korosensei's tentacles on contact; Shiro's white robe is made of it.

Clue Board

• Real name unknown (Episode 1)

  Korosensei says he has no name worth giving and lets the class pick one; Kayano comes up with 'Korosensei'. His real name remains unknown.

• Woman in the ruins (Episode 1)

  In a brief flashback Korosensei holds a bleeding woman in a ruined building; she tells him that with those tentacles he would surely become a wonderful teacher. Who she is remains unknown.

• A promise to someone (Episode 2)

  Korosensei tells Nagisa he became their teacher to keep a promise he made to someone. He does not say who.

• Unknown motive for the deal (Episode 1)

  Korosensei himself offered to teach Class 3-E, and the government reluctantly agreed on condition that he never harms the students, but no one knows why he wants to teach. His motive remains unexplained.

• Vague answer on the punishment (Episode 4)

  Nagisa grows suspicious after Korosensei's punishment of Irina, and Korosensei gives only a vague answer when asked for clarification, leaving the reason open.

• The chairman's words (Episode 6)

  The chairman, briefed by the Ministry of Defense, calls Korosensei a sad being who meant to become the world's savior but ended up a great evil that will destroy it. What else he knows is not shown.

• Korosensei's past romances (Episode 8)

  Karasuma started to ask whether Korosensei's romances dated from a time when he had two arms and two legs, then let it drop. What Korosensei used to look like is still unexplained.

• Shiro and Itona's score over the moon (Episode 10)

  The night before Itona's arrival, Shiro told him that Korosensei is his brother and will be his teacher from tomorrow, then said they would go settle the score over the moon. What the two hold against Korosensei over the moon is still unexplained.

• Claimed brotherhood with Itona (Episode 11)

  Shiro insists Itona and Korosensei are brothers despite different parents and upbringings, and the fight is presented as proof. Korosensei says he was raised as an only child and does not know what Itona means. The relation is unresolved.

• Source of Itona's tentacles (Episode 11)

  Itona has tentacles like Korosensei's growing from his hair. Korosensei demands to know where they came from, but Shiro refuses to answer, so the origin stays unexplained.

• Reason for current form and teaching Class E (Episode 11)

  Students ask why Korosensei takes his current form and why he teaches Class E. He answers seriously that they must earn these answers by trying to kill him, so the reason remains hidden.

• Disturbing recruit photo (Episode 13)

  Karasuma is horrified by a photo of Takaoka's recruits showing bruises and tied hands. It foreshadows the violent training Takaoka then imposes on Class E, for which the Chairman dismisses him.

Deduction Board

Facts

• Hostility toward Karasuma

  Akira Takaoka seethes with hatred for Karasuma and sees his PE takeover as a chance to topple him

• Chosen for the knife challenge

  Karasuma chose Nagisa Shiota to fight Akira Takaoka with a real knife, sensing his latent assassin potential

• Won the knife challenge

  Nagisa Shiota pinned Akira Takaoka to the ground and held the knife to his throat

Evidence

• Violent discipline

  Akira Takaoka knees Maehara in the chest and slaps Kanzaki hard enough to knock her down

• Calm approach

  Nagisa Shiota approached Akira Takaoka calmly, as if walking to school

• Feinted neck slash

  Nagisa Shiota maneuvered behind Akira Takaoka and feinted a neck slash, paralyzing him with fear

Inferences

• Behind-the-scenes contest

  Nagisa observes that the audience missed the battle of strategy between Korosensei and the Chairman.

• Abusive training method

  Akira Takaoka's recruit training appears to involve physical abuse

• Natural-born assassin

  Karasuma realizes Nagisa Shiota is a natural-born assassin and must decide whether to nurture or suppress that talent

Suspicions

• Source of the tentacles

  Korosensei demands to know where Itona got his tentacles, and Shiro refuses to answer

• Brotherhood claim

  Shiro and Itona insist that Itona and Korosensei are brothers, but Korosensei says he was raised an only child, and the truth is unknown.

• Decided in the finals

  Korosensei counts the midterms and the ball game as one win each against the chairman and says the final exams will settle it; how the chairman will answer is open.

Battle Record

Nagisa won the real-knife challenge Takaoka had staked his control of PE on, and the Chairman dismissed Takaoka for his violence.

Itona vs Korosensei after-school duel

After-school fight in the classroom · Episode 11

Location: Class E classroom

Trigger: Itona, calling Korosensei 'brother', challenged him to a fight to the death after school, and Shiro set a ring of desks where stepping out meant death.

Participants

• Itona and Shiro — fighter: Itona Horibe / support: Shiro
• Korosensei — fighter: Korosensei

Outcome: Korosensei made Itona's tentacles hit anti-sensei knives on the floor and tossed him out of the ring wrapped in his shed skin; Shiro then knocked Itona out and took him away.

Aftermath

• Korosensei lost a tentacle at the start, and Shiro's reaction-slowing beam stiffened him
• Korosensei's tentacle hand was destroyed when he touched Shiro's anti-sensei robe
• The class asked Karasuma for more assassination training

Class E vs baseball club exhibition match

Ball game tournament exhibition · Episode 12

Location: School baseball field

Trigger: Class E, left out of the ball game tournament, had to play an exhibition match against the baseball club in front of the whole school.

Teams

• Class E — players: Tomohito Sugino, Karma Akabane, Isogai, Nagisa Shiota / coach: Korosensei
• Baseball club — players: Shindo, Hashimoto / acting coach: Chairman

Outcome: Class E won after Karma and Isogai's zero-distance fielding rattled Shindo in the last inning.

Aftermath

• The crowd was stunned that the elite baseball club lost to Class E
• Nagisa noted that the audience missed the strategic battle between the two coaches
• Korosensei called it one win each against the chairman and set the finals as the decider
• Sugino and Shindo reconciled and promised a rematch in high school

Nagisa vs Takaoka real-knife challenge

Takaoka's authority duel · Episode 13

Location: Training ground outside the Class E building

Trigger: Takaoka proposes a real-knife fight to assert dominance over the class

Sides

• Takaoka's side — Challenger: Akira Takaoka
• Class E side — Champion: Nagisa Shiota

Outcome: Nagisa pins Takaoka and holds a knife to his throat; Korosensei declares the match over

Aftermath

• Takaoka furious and attempts to strike Nagisa, blocked by Karasuma
• Chairman Asano dismisses Takaoka for using violence to instill fear
• Takaoka leaves in shame; Karasuma returns as PE teacher

Ability Table

Season Summary

Season 1 — Season 1

Episodes 1–13

Korosensei, a tentacled creature that blew away 70 percent of the moon and vows to destroy Earth next March, becomes homeroom teacher of Class 3-E, the looked-down-upon 'End Class' of Kunugigaoka Junior High. The government offers a 10 billion yen bounty for the students to kill him by March, and Karasuma of the Ministry of Defense comes in as PE teacher to train them. Karma back from suspension, the assassin English teacher Irina, the AI transfer student Ritsu and the tentacled Itona brought by Shiro all take their shots at him, and through it all, including the Kyoto school trip, the students slowly regain their confidence. Chairman Gakuho Asano, who keeps Class E at the bottom, changes the midterm scope at the last minute, and at the ball game tournament the baseball club he coaches himself loses to Class E's boys; Korosensei leaves the deciding round with the chairman to the finals.

When Karasuma's old colleague Takaoka takes over PE with brutal training, Nagisa defeats him in a real-knife challenge, revealing a natural talent for assassination, and Chairman Asano dismisses Takaoka; Karasuma returns as PE teacher.

Music Releases

• Jiriki Hongan Revolution (OP)
• Hello, shooting-star (ED)