Assassination Classroom Episode 11 Recap & Characters (Spoiler-Free)

Episode Summary

Transfer Student Time, Second Period

Karasuma learns by email that a second transfer student and his guardian arrive that day. Summoned by the white-clad Shiro, Itona Horibe blows open the classroom's back wall, then challenges Korosensei to a fight after school and calls him his brother.

In a ring of desks, tentacles burst from Itona's hair and cut off one of Korosensei's own. Pressed by Shiro's beam and the strain of shedding and regrowing, Korosensei tricks Itona into striking anti-sensei knives on the floor, wraps him in his shed skin and tosses him out of the ring. Shiro knocks the raging Itona out and takes him away, and Korosensei's tentacle hand is destroyed on Shiro's anti-sensei robe.

Korosensei tells the class they must earn the answers about him by trying to kill him, and the students ask Karasuma to teach them more about assassination.

• Arrival of Itona Horibe

  Shiro brings Itona into the classroom, where he blows open the back wall, declares himself stronger than the wall, and challenges Korosensei to a fight after school while calling him a brother.

• Arena fight and tentacle reveal

  The fight rules are set and Itona's hair shows Korosensei-like tentacles. Itona exploits Korosensei's weaknesses at first, but Korosensei uses anti-sensei knives as a feint and tosses Itona out. Shiro then knocks Itona out and takes him away, and when Korosensei tries to stop him, his tentacle hand is destroyed on Shiro's anti-sensei robe.

• Class requests assassination training

  The class admits they had hoped someone else would kill Korosensei but no longer want to remain Class E nobodies. They ask Karasuma for assassination lessons, and he agrees to help anyone who wants to learn.

Recent Timeline

• Red Eye's failed sniping (Episode 8)

  The government's hired sniper Red Eye, briefed by Karasuma that the target was not human, shot at Korosensei during the Kyoto tour. A yatsuhashi sweet stopped his first bullet at the Hozugawa Bridge, he could not aim when Korosensei joined a staged sword fight, and his second bullet from the Yasaka pagoda stuck in mucus on oil-blotting paper. When Korosensei left to help Nagisa's group, Red Eye called off the day's attempt, and he quit the job after Korosensei thanked him.

• Ritsu joins the class (Episode 9)

  The AI 'Autonomously Thinking Fixed Artillery' enrolled as a transfer student, shot off one of Korosensei's tentacle fingers through a blind spot, and wrecked lessons until Terasaka taped her up. Korosensei gave her cooperation software and upgrades, and the class named her Ritsu. When her owners wiped the changes, she had already hidden the software in her memory, defied them, and became the class's ally.

• 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 pressure 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.

Character Graph

Korosensei

Class 3-E teacher · Super creature

Tentacled super creature who blew away 70 percent of the moon, moves at Mach 20 and says he will destroy Earth next March. At his own offer he became homeroom teacher of Class 3-E, and the government accepted on condition that he never harms the students. When the transfer student Itona called him 'brother' and challenged him, he won their ring duel; he says he was raised an only child, and he told the class he is an artificially created being.

• Assassination target

  A 10 billion yen bounty is on his head; the class attacks him with anti-sensei weapons that are harmless to humans.

• Teaching style

  Praises creative attempts, points out weak tactics, and tutors each student with afterimage clones.

• Brother claim

  Itona calls him 'brother' and Shiro insists they are brothers, but he denies it and the claim is unproven.

• Tadaomi Karasuma (Colleague, Hostility)

  Ministry of Defense officer overseeing his assassination; a fellow teacher who openly wants him dead.

• Nagisa Shiota (Mentor, Mixed)

  His student, who carried out Terasaka's grenade plan in episode 1; he praised Nagisa's natural approach but scolded him for not valuing his own safety.

• Itona Horibe (Other, Hostility)

  Transfer student who calls him 'brother' and challenged him to a duel to the death; after winning, he wanted to keep teaching Itona until graduation.

Nagisa Shiota (Nagisa)

Class 3-E student

Class 3-E student who keeps notes on Korosensei's habits and weak points. Watching Shiro lay bare Korosensei's weaknesses in Itona's duel, he was frustrated that the class had not found them first, and he asked Korosensei why he took this form and teaches Class E.

• Assassin

  In episode 1 he carried out Terasaka's knife-and-grenade attack and accepted that the class are assassins whose target is their own teacher.

• Korosensei (Mentor, Mixed)

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

Itona Horibe (Itona)

Transfer student

Second transfer student assassin, who broke in through the classroom wall and only wants to kill those who might be stronger than him. He calls Korosensei 'brother' and fought him in a ring duel with tentacles growing from his hair, but lost, and when he raged at being lectured, Shiro knocked him out and took him away.

• Tentacles

  His tentacle hair kept him dry in the rain and cut off one of Korosensei's tentacles at the start of the duel.

• Shiro (Guardian, Mixed)

  Guardian who brought him to school, set up the duel, and took him away after knocking him out.

• Korosensei (Other, Hostility)

  Calls him 'brother' and wants to kill him to prove he is the stronger.

Shiro

Itona's guardian

Man dressed all in white who calls himself Itona's guardian and gave his name only as Shiro. He insists that Itona and Korosensei are brothers despite different parents and upbringings, set the duel's rules, and fired a pressure beam that briefly stiffens Korosensei's body.

• Robe

  His white robe is made of anti-sensei fiber, so Korosensei's tentacle hand was destroyed when he tried to stop him.

• Itona Horibe (Guardian, Mixed)

  Boy in his care whom he calls Korosensei's brother; he took Itona away after the defeat, saying he would tutor him before sending him back.

• Korosensei (Other, Hostility)

  Target whose every weakness he claims to know; he refused to say where Itona's tentacles came from.

Karma Akabane

Class 3-E student

Class 3-E student back from a school suspension who was the first to wound Korosensei, and who chose to stay in Class E because assassination is more fun than returning to the main building. He noticed that Itona was bone-dry despite the downpour; Itona told him he was probably the strongest in the class but weaker than Itona himself.

• Ministry briefing

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

• Korosensei (Other, Mixed)

  Assassination target he has accepted as a teacher since episode 3, though he still means to kill him.

Ritsu (Autonomously Thinking Fixed Artillery)

Class 3-E student · AI

AI fixed artillery enrolled in Class 3-E as a transfer student, who learns from every volley and shot off one of Korosensei's tentacle fingers. Now a classmate who defied her masters, she explained that she and the second transfer student were meant to attack together, but his tuning took longer and she was too weak to support him.

• Kill probability

  Calculated under a 0.001 percent chance of killing Korosensei with her next shot, but over 90 percent by graduation.

• Korosensei (Mentor, Mixed)

  Her target and teacher, who upgraded her to cooperate with classmates; she still aims to kill him with the class.

Ryoma Terasaka (Terasaka)

Class 3-E student

Class 3-E student who devised the grenade plan Nagisa carried out in episode 1 and taped up the AI fixed artillery when she disrupted lessons. Itona took the seat between him and Karma, and during the duel he was the first to spot that Korosensei had escaped upward by shedding his skin.

• Korosensei (Mentor, Hostility)

  Homeroom teacher he wants to kill for the 10 billion yen bounty.

Chairman (Gakuho Asano)

School chairman

Gakuho Asano, chairman of Kunugigaoka, who keeps Class E at the bottom in grades and treatment so that other students work hard out of fear of falling into it. He changed the midterm scope at the last minute and reportedly taught the new material to the other classes himself, leaving only Karma in the top 50.

• Stance toward Class E

  Told Korosensei that Class E may glare like assassins, but bottom-ranked students must never defy regular students, and ordered him to put a stop to it.

• Korosensei (Hierarchy, Hostility)

  Teacher he employs, whom he tested with a one-second puzzle to show that some problems cannot be solved with speed.

Irina Jelavić (Irina)

English teacher · Assassin

Professional assassin hired by the government who stayed on as Class 3-E's English teacher, the one the students call Bitch-sensei. When her master Lovro ordered her to withdraw, she won the mock assassination of Karasuma that Korosensei proposed, pinning him with a hidden wire and pleading until he let her land the knife, so Lovro let her stay.

• Assassination plan

  Pretended to fall for Korosensei, who was the one actually smitten, then lured him into the storage shed where her henchmen opened fire; he saw through the trap.

• Mock assassination

  Her drugged drink and fake fall fooled no one, but her hidden wire trap let her get on top of Karasuma; after he blocked her knife, she begged until he gave in.

• Korosensei (Other, Mixed)

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

• Tadaomi Karasuma (Colleague, Mixed)

  Target of her mock assassination; he blocked her knife, then let her win.

• Lovro Brovski (Mentor, Mixed)

  Her master, who introduced her to the Japanese government; he ordered her to withdraw but let her stay after the contest.

Lovro Brovski

Assassin · Irina's master

Renowned retired assassin who now trains younger assassins and arranged Irina's placement with the Japanese government. He ambushed her with a wire and ordered her to withdraw, then lost the mock assassination contest when Karasuma disarmed him and hurt his hand, and let her stay.

• Verdict on Irina

  Said Irina is unmatched when her identity is hidden but ordinary once exposed; after the contest he called her a poor disciple but told her to be sure to get the job done.

• Irina Jelavić (Mentor, Mixed)

  His pupil; he came to pull her out but let her stay after seeing her persistence.

Tadaomi Karasuma

Ministry of Defense · PE teacher

Ministry of Defense officer who oversees the class's assassination of the creature and trains them as assistant homeroom and PE teacher. After Itona's duel, the students asked him for more assassination training, and he started tougher after-school drills for volunteers.

• New PE teacher

  In episode 2 he met the school chairman and became assistant homeroom and PE teacher to train the students in assassination.

• Stance toward the system

  Warned Korosensei that even he could not escape the chairman's system, and suspected the chairman changed the midterm scope to preserve it.

• Mock assassination

  Can stab five times in a second; he dismissed Irina's drink as the oldest trick in the book but gave in to her persistence under the tree.

• Korosensei (Colleague, Hostility)

  Target he is assigned to kill; they work side by side as teachers while he openly wants him dead.

• Irina Jelavić (Colleague, Mixed)

  Fellow teacher who targeted him in the mock assassination; he blocked her knife but let her win.

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. The same material can be made into clothing: Shiro's white anti-sensei robe destroys Korosensei's tentacles on contact.

• Isolated Class E and its nickname

  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. For school assemblies its students must give up their lunch break to hurry down the mountain and line up before the other classes.

• Class E's place in the school system

  Being in Class 3-E marks students for discrimination even after graduation, and the chairman deliberately keeps the class 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.

• Assassins enrolled as transfer students

  The special assassins sent by world leaders join Class E as transfer students. The first, the AI fixed artillery Ritsu, is registered as a student so Korosensei cannot harm her, and she has defied her masters to become the class's ally. The second, Itona Horibe, was meant to arrive with Ritsu and handle close combat but needed more time to be readied; he comes with a guardian named Shiro.

Clue Board

• Unknown motive for the deal (Episode 1)

  The creature himself proposed becoming Class 3-E's homeroom teacher, and the government reluctantly agreed without knowing what he is after. Why he wants to teach them remains unexplained.

• 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.

• 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 they would go settle the score over the moon. Now that the two have shown themselves, what they 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.

Deduction Board

Facts

• Itona's tentacles

  When the duel began, tentacles just like Korosensei's burst from Itona's hair and cut off one of Korosensei's tentacles.

• Thrown out of the ring

  Korosensei wrecked Itona's tentacles with anti-sensei knives laid on the floor, wrapped him in his shed skin and threw him out of the ring. Shiro then knocked the raging Itona out with a wrist device and took him away.

• Anti-sensei robe

  When Korosensei's tentacle hand was destroyed as he tried to stop Shiro, it was revealed that Shiro's white robe is made of anti-sensei material.

Evidence

• Dry in the rain

  Itona was completely dry despite the downpour outside.

• Shared habits

  The class noticed Itona and Korosensei sharing habits that made them seem like brothers.

• Weaknesses Shiro exploited

  Shiro targeted Korosensei's slowdown after shedding and the stamina cost of regrowing tentacles, and fired a beam that slowed his reactions.

Inferences

• Shared origin of tentacles

  Itona's tentacles closely resemble Korosensei's, pointing to a possible common source.

• Korosensei keeps the rules

  Karma expected Korosensei to honor the rule that stepping out of the ring means defeat, out of pride and for his students' sake, and Korosensei even added a rule that he forfeits if a student is hurt.

• Leaving it to someone else

  Watching the duel, the students realized they had been hoping someone else would kill Korosensei for them, and asked Karasuma for training so they could do it with their own hands.

Suspicions

• Brothers or not

  Itona calls Korosensei 'brother' and Shiro insists they are brothers, but Korosensei says he was raised an only child.

• Source of the tentacles

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

• How Shiro knows

  Shiro says he knows every one of Korosensei's weaknesses, but how he learned them is not explained.

Battle Record

The transfer student Itona Horibe, who calls Korosensei 'brother', challenged him to an after-school tentacle duel, and Korosensei won by throwing him out of the ring.

Fixed artillery assassination attempts

Class 3-E · Episode 9

Location: Class 3-E classroom

Trigger: The AI transfer student, registered as a student Korosensei cannot harm, opened fire on him in class.

Attacker vs target

• Autonomously Thinking Fixed Artillery — attacker: Ritsu
• Target — target: Korosensei

Outcome: A blind-spot shot destroyed one tentacle finger, but Terasaka taped her up to stop the disruption; after Korosensei's upgrades she survived her masters' reset and joined the class.

Aftermath

• Korosensei gave her cooperation software and upgrades
• Her masters wiped the changes, but Ritsu had hidden the software and defied them
• Ritsu now holds off on solo attacks until the class agrees

Irina vs Karasuma mock assassination contest

Irina vs Karasuma · Episode 10

Location: Class E school grounds, the staff room, and under a tree at lunch

Trigger: Lovro ordered Irina to withdraw, so Korosensei proposed a one-day contest: whichever of them first struck Karasuma with an anti-sensei knife would win.

Challengers vs target

• Challengers — assassins: Irina Jelavić, Lovro Brovski
• Target — target: Tadaomi Karasuma

Outcome: Karasuma saw through Irina's drugged drink and disarmed Lovro, but under the tree he blocked Irina's knife and then let her land it, so Irina won.

Aftermath

• Lovro allowed Irina to stay at Class E
• Korosensei had a suit of armour ready in case Karasuma won his secret one-second chance

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 pressure 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

Ability Table

Season Summary

Season 1 — Season 1

Episodes 1–11

A tentacled creature that blew away 70 percent of the moon vows to destroy Earth next March and, at his own offer, becomes homeroom teacher of Kunugigaoka's outcast Class 3-E. The government agrees on condition he never harms the students and offers 10 billion yen for his death, so the students attack him with anti-sensei weapons while he teaches them. Karma returns from suspension and wounds him, Karasuma becomes their PE teacher, and the assassin Irina stays on as English teacher after her failed trap. Chairman Gakuho Asano keeps Class E at the bottom and changes the midterm scope at the last minute, leaving only Karma in the top 50, and Korosensei vows to strike back in the finals.

On the Kyoto school trip, which doubles as an assassination assignment, high school delinquents abduct Kanzaki and Kayano, and Nagisa's group rescues them with Korosensei's guidebook. The government's sniper Red Eye fails to hit Korosensei and quits, and world leaders decide to send two special assassins to the class.

The first, the AI fixed artillery Ritsu, shoots off a tentacle finger, then, after Korosensei's upgrades, defies her masters to become the class's ally. When Irina's master Lovro tries to pull her out, she wins the mock assassination of Karasuma that Korosensei proposes and stays. The second, Itona, arrives with his guardian Shiro, calls Korosensei 'brother' and fights him with tentacles of his own but loses, and the shaken class asks Karasuma for more training so they can kill Korosensei themselves.

Music Releases

• Seishun Satsubatsuron (OP)
• Hello, shooting-star (ED)