Two new transfer students will join Class-E
If you look at the seating chart, there are three empty seats; the one next to Ritsu is occupied to Itona. And if you look closely, each vertical row are occupied by students with the same gender. That means the new transfer students would be girls. This would also balance the number of boys and girls, and everyone could shipped together.- Another option: Yuuji will join the class because of his crush on Nagisa.
- A Class A student will join the class.
- Chairman Asano will punish his son by putting him in this class if Asano Jr. will be humilated again, a sign of Parental Abandonment. Or because Asano Jr. will discover the truth behind the class, so the chairman will be forced to "seal" him away.
- In one of the latest chapters all the students in Class A has offered being transfered to Class E after their last defeat. And the chairman has apparently started to demolish the Class E's building to built a prison like hell hole. So perhaps the entire Class A will join Class E. It's going to be awkward to say the least.
- Looks like things have remained as is although they had to rebuild what was destroyed and the treatment of class E is still relatively poor it's much better than before with some form of odd respect; so no, Class A isn't joining them.
- Two unhumans will join the class. Just look at Ritsu and Itona.
- Tanaka and Tadaka, Those Two Guys from the main building who always pick on Nagisa, will drop into Class 3-E. Hilarity will ensue at their expense as they try to adjust to the assassination lifestyle.
"The God of Death" is the Chairman Asano
When Lovro tells Nagisa about the "The God of Death", we see the chairman observing Class-E via monitors with a hidden face.- Jossed. The assassin has a different hair color.
- The man with the monitor wasn't the chairman, but really the "God of Death". He's eating the chocolate bar.
- Interpret it as you will with the second God of Death, but it may be relevant Korosensei was revealed to be the master that Lovro talked about in 133.
- Double Jossed: there are two "Gods of Death", and neither of them are Chairman Asano.
"The God of Death" is the mysterious Yukimura-sensei
Yukimura-sensei stopped teaching Class-E and disappeared the month the story started to focus more on his part-time job as the assassination world's most feared and ruthless hitman.- Jossed. Yukimura was revealed to be deceased in Chapter 129.
Kaede Kayano has a hidden special skill
Each student in this class has a speciality, but Kayano, the girl we see the most, has not really done anything yet and she's pretty much The Load. Like Nagisa, she must have a special skill that has to be shown yet.- Well, we have some kind of answer to this now. She seems to have a knack for logistical organization, and an extreme love of pudding. Whether that qualifies as a "special" skill or not, YMMV.
- Confirmed. She has tentacles like Koro-sensei, as revealed in Chapter 128
- And besides that, she is said to possess an extraordinarily strong will, which allows her to attend class E as if it were any other class, completely unbothered by bullying or the pressure of having to kill.
Alternatively, Kaede Kayano is important to the plot
Maybe her skills are average to the other students, but she is important plot-wise.- She is related to the woman who died in the first chapter. Maybe her daughter? Hey, this is WMG
- Confirmed that she is her sister, but her skills are anything but average
- As of 128, Confirmed, considering that she has tentacles like Itona and Koro-sensei.
- As of 129, she becomes a key part of the plot.
Itona will have a Heel–Face Turn
Koro-sensei frequently offers him to stay in the class.- Confirmed in chapter 87.
Gastro, Smog and Grip will come back
It's implied that they will show up in the future.- It is possible that they become tutors/teachers as well. All of them are very skilled and they never used their full abilities during the Assassination Island arc. Gastro is a professional marksman and he could be a great teacher to Chiba and Hayami. Smog's ability to create poisons could improve Okuda's skills, and Grip could teach the more physical fighters some of his techniques.
- Confirmed though not for any action-y reasons; they show up again to support Class E at their cultural festival in Chapter 117.
Koro-sensei doesn't have a choice
He would destroy the world within one year, but it is not due to his own will. He is also probably have a case of I Cannot Self-Terminate. So he gives the students chance to kill him to prevent the destruction of the world. Also, he has to be killed in a certain way to be really dead.- The destruction of the moon? It's a fail suicide attempt.
- The part about destruction of the moon is Jossed.
- Confirmed in Chapter 133, except for the last sentence which is still uncertain.
- Further Confirmed in Chapter 138. Once Koro-sensei reaches the end of his natural lifespan (which falls on March 13), the antimatter stored in his cells will explode and destroy the Earth whether Koro-sensei wants to or not.
Nagisa is also a being similar to Koro-sensei and Itona
Tentacles seem to start with the hair and Nagisa does seem to have unusually lively twintails that correspond to his mood.- Itona was originally human, and the tentacles were implated after his parents abandoned him. Now that he lost his tentacles, Shiro wants Nagisa as the next experiment.
- Nagisa was revealed to be a Red Herring for Kayano in 128.
Koro-sensei didn't actually destroy the moon
And he wouldn't destroy the Earth either. The true culprit is another being similar to him, something he cannot defeat. He hopes that by being defeated and killed by humans, they will get enough power and experience to kill the true Big Bad.- Partly Confirmed in Chapter 138. Shiro had a second lab set up on the Moon to test what would happen if a rat with antimatter organs like Koro-sensei died of natural causes. Turns out, when it died, it created a massive antimatter chain reaction which destroyed most of the Moon.
Koro-sensei takes credit for the destruction of the moon to further his own goal
Working off the above, Koro-sensei takes credit for the destruction of the moon because whatever conflict he had with the real antagonist that ruined the moon ended with a threat to attack the Earth in one year. Claiming the destruction and threatas his doing openly would allow him to make whatever demands he wanted of the governments of the world, and so uses the chance to create a group of skilled assassins that would unquestionably be able to kill Koro-sensei, in a bid to tip the odds in his favour during the rematch in March. The entire ordeal of teaching Class E may just be Koro-sensei's attempt to set the most elaborate trap to kill the real enemy by manipulating the resources of worldly government resources he'd otherwise not have access to.- Confirmed in Chapter 138. Koro-sensei knows that if he dies of natural causes, the antimatter in his body will become unstable and destroy the Earth. That's why he wants to find somebody that can kill him before March 13, which is when his accelerated lifespan ends.
There will be Itona and Ritsu ship tease
Now that we know Itona's backstory, pretty please?- Bonus point: Itona is a Gadgeteer Genius.
- Joining both points together: Itona will build an android body for Ritsu, and then they'll be able to be together(whether Itona builds it exactly for that objective, though, is another matter).
Nagisa's parents are divorced
This theory is gaining popularity on Japanese message boards, so it bears discussing. Proponents suggest that Nagisa was sent into class E because of the social stigma associated with his parents getting divorced.- Pro: The first time we see Nagisa's father, they're having breakfast at a sushi bar, not at home. We learn that they do not see each other often, and that they both seem to have a difficult relationship with Nagisa's mother. Since children in Japan usually change their last names to match the parent who gets custody of them, the reason that absolutely nobody calls Nagisa by his family name could be because his family name is his mother's.
- Con: Nagisa's former homeroom teacher all but directly says that Nagisa's failing was poor grades, since his own rating was lowered because of Nagisa. Nagisa also says that nobody in his family looked him in the eyes after he was assigned to class E, which would indicate a failure on his part, not theirs. Nagisa also cuts his meeting with his father short to go off with Koro-sensei. Visitation rights in Japan are extremely limited, so this would be very odd if it was their only chance to see each other. It is more likely that Nagisa's father has a job that forces him to travel around a lot, and when he and Nagisa have breakfast in chapter 76 he's just returned and will be back for at least a while.
- In message boards and blogs, the main consensus is that Nagisa's grades dropped because of the strain he suffered because of his parents divorce. Apparently, the "not looking on the eyes" line is usually interpreted as referring only to his mother, since he's been living only with her since the start of the story.
- The time frame in which he has been living only with his mother isn't clear. It might have been since the start, or for a shorter period. Also, saying he was referring only to his mother in chapter 40 is strange. Why wouldn't he just mention his mother, instead of talking about "kazoku/members of family"? He seems to have no siblings.
- Confirmed, in a way. While no divorce was explicitly stated, his parents don't live together anymore.
Gakushuu Asano will not realize what exactly is going on in Class 3-E, until years after Koro-sensei has been killed.
Years after they graduate, Gakushuu will need a hitman, possibly to even kill his own father to take over the school. And after thoroughly looking into available high quality hitmen, he will come across Nagisa's name, and soon many other from the class 3E as well. It's only then that he will realize just exactly what kind of special training were they getting there.- Better yet, he'll find out at some point, only for the government to wipe the truth from his memories when he threatens to reveal the secret.
Nagisa takes after his mother...including in his talents for assassination.
Nagisa's dad seems like a pretty nice guy, and Nagisa mentions that his mother is the difficult one. Since Nagisa's dad seems pretty milquetoast, it's very likely that Nagisa takes after his mother. If his parents have been separated for an extended period of time, it's very likely that he could have become the way he is from her. Alternatively...- From the raws, Nagisa's mother DOES responsible for making him like that. But not in the way you expect.
Nagisa takes after his father, who is The God of Death.
It makes sense. They look alike, and Nagisa's father lives away from the rest of the family. Nagisa could easily inherit his old man's skills, or even be TAUGHT by him (though that is implausible). The one thing that rules this out is the seeming quickness The God of Death finds Lovro, but it's never specified how much time passed between the two scenes.- Jossed. Koro-sensei is the true God of Death.
Nagisa takes after his STEP-father, who is The God of Death.
Following the WMG above about his parents divorced and his mother later marrying someone else. It was his step father who was the god of death.- Jossed Koro-sensei is the true God of Death.
Koro-sensei Was Once a Man
All the origins seem to show that Koro-Sensei was born in a vat, and he appears human-like in some flashbacks. What if he was subjected to the same experiment on Itona? He could be a Super Prototype, if that's the case.- Chapter 30 has a brief flashback of a human hand turning into tentacles.
- Confirmed. Koro-sensei was an unwilling human test subject.
The woman from Koro-sensei's past is the Chairman's wife!
I actually read this in the comments page of some manga reading site so apologies for stealing this. But I thought hey, mangas always pull something like this so why not. She wanted someone to stop her husband's evil educational tyranny (and her son was already turning into a clone of Daddy) so she decided to send an alien in to teach the bunch of kids her husband terms "rejects". Might also explain why the Chairman knows something about Koro-sensei's past.- Jossed. It is Yukimura Aguri, Class 3-E's previous teacher.
The woman from Koro-sensei's past was Class 3-E's previous teacher.
She was a kind teacher who suddenly vanished because she was killed off in the incident that turned Koro-sensei into a supercreature (if you believe that WMG), and her Last Request was for Koro-sensei to teach Class 3-E in her place. She usually appears in brief flashbacks right before Koro-sensei declares his concern for his students, and in each of them she obviously meant a lot to Koro-sensei.It would really justify why he's so protective of his students and motivated in helping the kids excel: Being their teacher, and thus keeping the promise he made to someone who was very precious to him, is more important to him than the end of the world.
- Confirmed Yukimura Aguri was revealed to be that person in Chapter 129.
Rather than becoming hitmen, Class E joins the military's special forces. Or opens their own mercenary business.
Their skillset isn't limited to being assassins and they already have a link to the military through Karasuma and the others. They also tend to work best as a whole Badass Crew while being hitmen seems more like a solo affair. The world of Assassination Classroom take place in a universe parallel to Majin Tantei Nougami Neuro.
Since Neuro confirmed the existence of parallel universes in the penultimate chapter of his series, Assassination Classroom's setting might as well be one of them — after all, both are written by the same author. A couple of characters from AC even share similar traits with Neuro's protagonists.- The prime ministers in both series have the same name and appearance. They're basically the same person.
- Like the Chairman, Neuro is a clever, sadistic, Manipulative Bastard who seems fairly pleasant on the surface.
- AC has two characters that closely resemble Yako, the protagonist of Neuro. Nagisa shares her observational skills, narrative duties, amicable personality, and height, while Fuwa shares her voice actress and love for mystery solving.
- Godai and Terasaka are brash and aggressive but ultimately very reliable when the situation calls for it. Both characters serve as The Big Guy for their respective series.
Nagisa's mother is Aya Asia, and his father is really Neuro.
It would tie into the author's previous series, and explain a lot about how Nagisa thinks. Also, Aya would likely not be a very good mother, what with the life in prison and the "I can't love anyone" thing, so it makes sense.- Jossed?
Asano will have an Enemy Mine with Class E against Chairman Asano
Asano is not only an Antagonistic Offspring, he is visually disgusted of Chairman Asano. Apparently, Asano does not want to become exactly like him and he will not take Chairman Asano's lessing about losing, but he will team up with the very opponents who defeated him in the exam bet and in boutaoshi.- Confirmed partially, during the last exam arc.
Nagisa is actually Quetzalcoatl, the Mayan Feathered Serpent.
Hear me out: The snake imagery, the the potential for death, the feathery hair (including the winglike tufts), and the implication that Nagisa is the best chance of succeeding in the assassination leads me to believe that Nagisa is far less human then is shown. Even if he isn't literally Quetzalcoatl, he might be its incarnation. The moon is not really blown up.
The moon controls the tides, and since there's no news of apocalyptic storms, Korosensei probably did not blow up the moon like we think he did. Knowing his policy for improvement, he might have even altered the tides to be better for the planet.- Jossed. The Moon really did get blown up.
Koro-sensei destroyed the moon, but not by blowing it up.
Nevermind that they explicitly say that the moon exploded; that was the best logical explanation they could come up with for the sudden disappearance of 70% of its volume. Koro-sensei actually converted all of that moon mass into energy (via some method of E = mc^2 ) and stored it inside his body. It forms the crystallized energy of his Ultimate Defense and provides more than enough energy to keep him healthy unlike Itona, whose tentacles require three nuclear power plant's worth of energy to function properly for a month.- Jossed. Koro-sensei didn't actually destroy the Moon. One of Shiro's experiments did.
Koro-sensei blew up the moon, and its fragments became his kryptonite.
The moon's fallout became the basis for the anti-sensei material used in their knives and bullets, and the strange beam of light that Shiro uses to stiffen Koro-sensei's cells is synthetic moonlight that utilizes the same anti-sensei technology.- Jossed
Kataoka's hairclip will become a Chekhov's Gun.
The anti-sensei hairclip she made specifically for underwater assassinations was never utilized during her arc. During the final days before the Earth's destruction, the government will nuke Kunugigaoka in a desperate, last-ditch attempt to save the world.
One of the world leaders made the suggestion, which was quickly dismissed not because it would endanger innocent lives but because they figure Koro-sensei would just outrun the explosion. What better way to keep Koro-sensei in range of the nuke than a bunch of civilians in harm's way? The 'God of Death' is tied to the same tentacle-cells as Koro-sensei and Itona
The 'invisible scythe' of his could be a similar tentacle, hidden entirely when not in use. Whether or not he had it before or after Koro-sensei's appearance is unknown, but God of Death could either be a wayward prototype that used his potential for assassination or Shiro's newest implant, which would explain his sudden return to the scene after being inactive. In either case, he's apparently directly targeting known assassins that have so far failed to kill Koro-sensei.- Jossed. His "invisible scythe" is actually metaphorical and he uses Finger Firearms.
Koro sensei ate a Devil Fruit
Probably alien alien fruit, which turned him into octupus and gives him super speed, but render him unable to swim.- Sadly jossed.
The God of Death is going to be Class 3-E's teacher
And everything happens in his arc is just a test or something.- Looks like this is jossed.
- CONFIRMED! Sort of, because Korosensei was the true God of Death all this time before he started teaching Class E.
Koro-sensei will not be Class 3-E's final opponent.
Even if they succeed in killing Koro-sensei, Class 3-E's trials will not be over. The Chairman is likely to be their final adversary, possibly with the backing of the Japanese government as well. The Chairman would not be able to accept the outcome that the members of Class 3-E have essentially saved the world, which, regardless of their educational prospects, would be a serious blow to his philosophy. His answer will be to convince the members of the Japanese government that the students should be "silenced" rather than rewarded for their accomplishment, which, given that the government has already shown to be more than willing to engage in a few shady dealings, like backing out of an agreement (especially since Koro-sensei will no longer be there to ensure said agreement has been kept), will gladly accept, especially since it would mean not having to hand out a ton of money to a bunch of middle school students or admit that it depended on these students to deal with a world-threatening adversary in front of foreign powers. As a result, the students of 3-E will be forced to put their assassination skills to use one last time against the Chairman and his supporters. Nagisa will kill the Board Chairman
Nagisa has been continuously hyped up to have some sort of super-assassin talent, and the Board Chair man has been shown to be arguably the greatest and most evil Big Bad, its a distinct possibility the former will end up killing the latter to restore balance to the school.- Jossed. The way the manga resolved his arc makes it unlikely Asano is an important antagonist anymore.
Koro-sensei IS going to destroy the world...
...but for our own good. There's some Krypton thing going on that we don't know about. He's going to move the human race somewhere else first, but the preparations for that will take a year or so. He's having fun in the meantime and has no real intention of getting killed — the Class E experiment has some other purpose (and may be succeeding just a liiittle too well).- Jossed. He wants Class E to kill him because the Earth will be destroyed if he dies by natural causes.
There's more about the whole moon thing then we know...
The moon, even after losing 70% of the volume, has still more than enough mass to collapse into a sphere or roughly spherical shape. It cannot keep the crescent shape on its own... unless something is actively preventing it from collapsing.- Probably Jossed since the moon showed progress of reshaping itself at the end of the anime.
Class E's former teacher, Yukimura, is now Shiro
According to the summer festival chapter, they only taught Class E for a month, and then disappeared. Korosensei taught them thereon. Shiro seems to have personal anger against Korosensei, which may extend beyond the Class E setting (perhaps he knew the lady in Korosensei's flashbacks or was also affected by what looked like an explosion; he doesn't seem normal either, as at the end of one chapter he ends up casually eating a mouse that was on his robe). Really the main reason to suspect this is he already knew of Nagisa's bloodlust and dangerous capabilities in their brief encounters, it would make more sense if even for just knowing for a few weeks he's been able to analyze his character. It'd be a punch to class E, who only remembered him as a kind person even to the "End" class—and maybe he really was, before something happened. The last reason is, well, even if he went by the color of his anti-sensei clothes it's "Shiro" and "Yuki"...- Likely jossed for some of its grounds in 128, he was talking about Kayano, whose hidden bloodlust he had successfully observed in a single glance.
- Jossed. Yukimura was revealed to be deceased in Chapter 129.
- In fact, Yukimura was in an arranged marriage with Shiro.
Korosensei has no intention of actually destroying the world.
It takes a special kind of hatred or an extremely compelling reason to justify destroying a planet full of people... especially when he seems to appreciate many aspects of Earth's various cultures. He is clearly capable of empathy and compassion, so why would he simply choose to destroy the world on a whim? And if he intends to destroy all of humanity, what logical reason would he have to care about the students' well-being? Maybe he's trying to paint himself as Earth's Common Enemy to unite them and end war and division among people. After all, isn't that what he's been trying to do with the students and the whole "Class E" situation?- Alternatively, Koro-Sensei is trying to lead a group of Child Soldiers for his Badass Crew......in SPAAAAAAAACE!!!!
- Also, we have yet to see Koro-sensei actually KILL anybody.
- Confirmed in a way. It's revealed he has no choice in 133.
- Further Confirmed in Chapter 138, where it's revealed Earth will be destroyed if he dies of natural causes.
Nagisa will gain Korosensei's speed.
Shirou is already interested in Nagisa's talent as an assassin, and will adjust his body to be able to accelerate his internal functions to travel nearly as fast as Korosensei. May count as a Deadly Upgrade, as the human body cannot handle the strain of acceleration as fast as Mach 20, as evidenced in chapter 28 when Korosensei took Nagisa and Karma to America to watch a movie.- Jossed. It turns out he was talking about Kayano in 128. And when she fails her attempt, he outright declares himself as the final assassin Korosensei will face along with a mysterious new companion in 133.
Ikeda is Koro-sensei, Mori is the dead woman, Nagai is Shiro
No named character has ever died in the manga until Ikeda (or possibly Mori). So Mori and Nagai worked together to resurrect him, but it went wrong. This reconciles all those hints that Koro-sensei used to be human with the flashback of the woman giving him a new birthday, since he had been given a new life. It also accounts for how that woman knew about class E. She probably kept an eye on how things were developing there under her former teacher. Koro-sensei followed her request out of guilt for killing his old friend, and Nagai-Shiro hates him so passionately for the same reason. There is also a great similarity between Asano in the past and Koro-sensei in the present. Both are perfectionists who tailor their lessons to each individual student. It would make sense if Ikeda learned how to be a teacher from him.- Point against: Koro-sensei clearly did not recognize the Chairman when they first met in chapter 12.
- The Mori part is Jossed. Yukimura was revealed to be a different person than Mori in Chapter 129.
- Jossed. Korosensei was the original God of Death as revealed in Chapter 133.
Kayano is not Human
Unlike Itona when he lost control, Kayano is using black tentacles with complete control over them. More importantly, unlike Itona, Kayano's tentacles are located right on the nape of the neck, and the implication is that they've had the tentacles since the manga's beginning, and were not given them by Shiro, as Itona was. This might be related to how Koro-sensei was created in the first place, and may even tie all the way back to Asano's statement about how he was created to be the world's "savior", but instead became its "destroyer" - he was created to combat whatever Kayano really is.- Jossed. The former injected themselves with tentacle cells and the tentacles have eroded their mind.
Korosensei is the pyromaniac from Nougami Neuro, and Yako is the dead woman
We never really see what happened to him at the end of Neuro. It's possible that this is actually the sequel.- Jossed
This class E, upon victory will be the last End class
Asano actually reworking his system so no future batches would have to suffer discrimination would be an idealistic note to end at admittedly, but it doesn't hurt to have wishful thinking. The End class that ended the hurtful system too?- Confirmed. After Korosensei's death, the Chairman received backlash from outside the school, forcing the system to stop. Also, the Chairman goes through a Heel–Face Turn and meets his former cram school students.
Koro-sensei is a more advanced form of Flubber
He's slimy. He's rubbery. Originally, one of his default colors was green. He can fly, like flubber was able to do with the aid of a little machinery. He can release tremendous amounts of energy. If he was created by a team trying to find a source of perpetual energy, that would explain how he was meant to save the world. But the accident happened because the scientists were absentminded, like in both versions of the flubber story. Koro-sensei started bouncing back and forth, releasing more and more energy each time, until the only way he could release the energy was by coring the moon. Karma's parents are actually nice to him
This is in contrast with most students in class E. They really accepted him as he is, whether he was a delinquent or being sent into class E.- In the character book Roster Time it's revealed they travel for much of the year because they're successful, lovey-dovey, and rich, so they're barely at home. This was hinted at when Karma mentions they picked a foreign name for him. They probably spoiled him even if they weren't around so much, if not also being worryingly lenient with his destructive habits...
- OP here: I don't know about character book but it's sounds really cool!
The series will end like this
- Koro-sensei is dead, but it's actually good ending (considering his backstory with the dead woman).
- There will be timeskip and we get a glimpse of the students as adult. Maybe they held a reunion or something.
- While there's probably no continuity of the series, some of the characters will make cameo as an adult in the author's future work.
- Confirmed on the first two points; the class worked together killing Koro-sensei themselves with his blessing as opposed to allowing him to be destroyed by the government's space laser, and then use a portion of the reward money to purchase the mountain they all trained on. They still meet up with each other every now and then in their adult lives after going their separate ways. Still no news on the third.
Assassination Classroom shares the same universe with The Disastrous Life of Saiki K..
- There's been two crossovers between the two series, and Saiki has shown up in an official chapter of Assassination Classroom.
- Strange hair colors are considered natural, as shown by Kayano and Nagisa.
- Whenever the moon appears in The Disastrous Life of Saiki K., it's always in a crescent shape.
Kayano and her sister aren't actually siblings
While braving the wilds of Tumblr, I came across a post that suggested that something still seemed off about Kayano despite the reveals given to us. In particular is the noted lack of resemblance between Kayano and her supposed sister Aguri Yukimura. Another post also noticed she's noticeably shorter/smaller than the rest of the class (and not just in the "Forever 0" manner, either).My theory is that, though Kayano herself does not know it, there is a Family Relationship Switcheroo at work here. Kayano and Yukimura aren't siblings, they're parent and child, and Kayano simply takes after her other parent.
One supporting idea is "big sister's" demonstrated support of Class E, which could be due to having also been a Class E or equivalent herself following a teen pregnancy scandal (and it would have to be teen pregnancy to best account for the age gap between the two). If the reason Kayano is smaller is because she's also younger than the rest, it goes toward this as well, as it minimizes the age gap further. One downside is it feels as if there's little point plot-wise in adding this on top of the other revelations we've been getting in the course of this arc.
- Can this manga get away with teen pregnancy?
- You saying that they lack resemblance is invalid. They do have the same natural hair color and similar faces.
- Characters in-story have noted a lack of resemblance. Then again, I could be mis-remembering.
Nagisa would eventually get tentacles too
Because come on. Even with tricks and all, eventually the tentacle is needed to fight on par with Koro-sensei.He's the main character so he must be the one killing Koro-sensei.It's probably won't be for long, maybe only on one final fight.- This is somewhat unlikely considering that Nagisa wants to save his teacher's life rather than take it.
- Jossed. Nagisa does kill Koro-sensei, but he never gets tentacles.
Aguri Yukimura is Koro-sensei's First Love
Being the first person who was ever nice to him. Also seeing how dedicated he is to Class E would it be surprising.- Confirmed
The series will have a partial Book End
Mirroring how Aguri Yukimura died, Koro-sensei will return to his true human form and die in one of the students' arms (most likely Nagisa's) while expressing his Last Request... which will be nothing more than for Class E to live long, happy lives with no regrets.- Mostly confirmed. Koro-sensei doesn't return to his human form, but he does die in the arms of his students (holding him down so they can kill him) hoping for them to grow up into fine adults into the future.
The governments' propaganda and assassination attempt will not go according to plan, if not backfire spectacularly
We all know the governments' attempt will not go according to plan, otherwise, there is no point to showing Shiro giving the second God of Death tentacle powers, but specifically speaking and less meta, they said that Koro-Sensei is a monster who has held the students hostage. However, it was shown that throughout the year, Koro-Sensei took lots of pictures proving the exact opposite, and is currently making the most of the time he has while being trapped to finish compiling the pictures into the special Class 3-E yearbook. When reporters see those pictures, they will show them to everyone, proving the governments have lied, which will cause a huge backlash.- Jossed. The assassination would have gone off even if the students hadn't shown up to kill Koro-sensei. However, the public still does believe Koro-Sensei was evil. The students had to stay quiet about it due to the reward money being hush-money.
Koro-sensei is preparing the students for something far worse
There is something far worse than Koro-sensei out there and he knows it. Which is why he's taking drastic steps to prepare the students to defend themselves against said bigger threat. Even at the cost of his own life. The moon bit was just for them to get his attention.- Jossed. The reason the moon blew up was due to Yanagisawa's experiments. Koro-sensei simply wants the class to kill him so he doesn't explode and destroy the Earth.
The plot of final chapters
- Their graduation ceremony and how the rest of the school will react to the news that Koro-sensei was their teacher for the past year.
- Confirmed: After getting swarmed by the press at their graduation ceremony, Class 3-A intervenes and helps them escape.
- A time skip years later showing what the class has done with their lives and their share of the reward money.
- Nagisa making good on his decision to become a teacher and coming back to teach the newest 3-E class.
- Confirmed for the first point: The last two chapters skip ahead seven years. Aside from living expenses and enough to purchase the mountain their classroom was on, 3-E gives the reward money back. There are also brief glimpses into their lives and it Book Ends with Nagisa taking roll with his class, though not a 3-E class since the system was abolished, and challenging them to kill him before graduation.
Karma is Sr. Asano's illegitimate child
Karma bears a huge resemblance to Gakushu, and both have high grades. It may be the reason why his parents tend to not spend much time with him. His name could be an implication that his mother cheated on her husband, which brought forth an unwanted child. Karma is Gakushu's long lost twin brother
Sr. Asano gave him up for adoption or sold it to a childless couple so that he can put his full attention on efficiently teaching just one son. Nagisa's mom became infertile at some point after having Nagisa.
This would explain why she sees Nagisa as her only do-over: she can't simply "create another character" (i.e., give Nagisa a potential little sister), and adoption is "playing someone else's save file".