Assassination Classroom Backburner

Assassination Classroom Backburner Ideas

Stories

Koro-Sensei’s Sex Ed

A voluntary class, Karasuma agreed to it only because he didn’t believe any of the boys would agree to take it. Now he’s gonna be used as a practice dummy for sex-ed. Koro/Karasuma+Class E Boys

Our Teacher is A Reaper

The Reaper comes to teach at Class E. Having an infamous assassin teaching you has some really odd benefits. Yet the students can’t help but falling for the charming sexy killing machine.  

Slither Wiggle Lessons

While the boys don’t really talk about it, but they really enjoy Koro-sensei’s special lessons. Koro-Sensei/Class E Boys

He Is Our Teacher

Koro-sensei taught them well, when facing the very end Class-E figures out a way to save their sensei just one final time. Koro/Karasuma/Class E Guys

Love Past Love Together

One lived a life dancing with death, the other lived the life of danger working for the government of defense. Their love was forbidden, but then the Reaper vanished, can he accept what his love has become or has his heart grown too cold. Koro/Karasuma

Hot For Sensei

Class E isn’t trying to kill Koro-sensei anymore, which has allowed them to reflect on their feelings for him, and a special club has started to express their love for Koro-Sensei. Koro-sensei/Class E Boys

Teacher’s Pets

The Reaper loves playing with his students, if they react to his human form he makes them his pet. His tentacle skills he can even manipulate their minds more so than Asano can. Brainwashing Koro/Harem

Shiro’s Fail Safe

Shiro has left pods in old school building of E-Class inside the pods are fearsome creatures that will go after the kids. The strange beasts have weird and random effects, the fearsome creatures even give Koro-sensei some trouble. Cock Hugger Size Manipulation Rule 63 Koro/Harem

Moon Pods

Shiro got his hands on an excellent guinea pig, he puts him in room with a strange pod discovered on the moon. Inside is a frightening creature that forever changes the Reaper’s body. This change has also effected him in other ways surpassing his normal limits he eventually escapes, and destroys the moon because there’s a whole nest of these pods. He saved the earth from global invasion and instead he’s blamed for destroying the moon.He becomes the Teacher of E Class and is being watched by Karasuma to be deemed if he’s a threat. Cock Tail Koro/Harem

The E Dress Code For Boys

The principle loves to humiliate class E, so what better way to humiliate them is to make them wear embarrassing uniforms. Upon reaching school grounds the boys must change into their humiliating uniforms. The guys always hated the uniform, so the principle says they can wear it or go naked their choice. Either way they are mocked, but all that changes when Koro-sensei arrives. Koro/Harem  

Classroom of the Dead

Shiro was messing with some pretty messed up things, unleashing a zombie apocolypse. The Reaper escapes and works to keep as many humans alive as possible. He has to turn survivors into killers in order to help them stay alive. Koro/Harem

Our Teacher Is A Monster: Lamia

Shiro experimented on the Reaper, an assassin without a name or home wouldn’t be missed, they spliced his dna and took away his humanity not that it really bothered him none. He was treated as less than human, and they thought they could control him but he escapes. He decides to become a teacher taking the blame for Shiro’s experiments. Now he must teach a class to be assassins to kill him. Koro/Harem

Our Teacher Is A Monster: Arachne

Not a lot of jobs for monsters, for the Reaper he’s spent his whole life killing, but after losing his pupil he decided to give up the work and find something new. Karasuma is his handler and host, and as such tends to follow him around. Reaper/Karasuma/Harem

Our Teacher Is A Monster: Manticore

Monsters and Humans had a rocky start, humans killing monsters, and vice versa. Even when a peace treaty was signed some monsters just kept killing. A vicious hunter known only as the Reaper was captured and arrested, because of his more famous contacts he’s been pardoned with a chance to clear his record, all he has to do is teach a class of humans...yeah easy...  

Teaching Survival

The Reaper was very good at killing which was needed when the zombie apocalypse began. He takes in some kids the world abandoned for dead and teaches them to survive. They fight and kill for survival, and the Reaper is so proud of them. Reaper/Harem  

One Shot

Human Form

Koro-Sensei can take human form, if properly motivated, and Karasuma certainly qualifies. The man wants to hate him, but you can’t help who you fall for. Octopus or no… Koro/Karasuma

Caged Karma

Koro-Sensei has ways of making boys better, so he offers a way to improve Karma. The red head doesn’t think this is a good idea, but after a few days of having his dick caged, his sensei was right. Koro/Karma

Getting a Raise

Koro-sensei needs a raise, the only way to get one is through the principle. Asano agrees if Koro-sensei can satisfy him of course. The principle is in for a wild ride. Koro/Asano

No Killing Hour

There is one hour a day where Karasuma will not kill Koro-Sensei, during that time the former reaper is able to do whatever he wants with him. He’s fast there’s a lot he can do in an hour.  

Break Room

Ever wonder what goes on in the break room with the teachers. Well in the Class E break room things get a little wild, Karasuma getting stripped at mach 20, and tied up and well let the games begin. Koro/Karasuma

Refreshing

After a long day of training and teaching, Karasuma could use a bit of a refresh, and Koro-Sensei is happy to help. Koro/Karasuma

Say My Name

Koro-sensei is determined to get Karasuma to say his name, and he’s got plenty of toys and tricks to get him to say it. Denial Toys Tent Koro/Karasuma

I Will Not Beg

Koro-Sensei proposes a game, to lock Karasuma in a cage, and keep him stuffed for a week. If he can last the week he gets a free shot at killing him. Karasuma thinks he’s got this, but Koro-sensei isn’t gonna make it easy. Koro/Karasuma

Peeping Game

Karma is curious about catching Koro-Sensei in the bath, supposedly he takes human form to properly bathe. He and Nagisa take the bait and go for the peep, only to get caught and punished. Tentacles Koro/Nagisa/Karma

I’m Sorry Sensei

Terasaka has to apologize to Koro-sensei for being apart of Shiro’s plot. Koro-Sensei shows there are no hard feelings. Koro/Terasaka

Nagisa Loves Tentacles

Nagisa didn’t know it, but after meeting Koro-sensei, he discovered he actually is hot for tentacles. He confesses to Koro-sensei and the being is happy to help his student. Koro/Nagisa

Karma Loves Tentacles

Karma wasn’t much for titles, he liked girls and guys about the same. Then he meets Koro-sensei and learns he really loves tentacles. 

Pitcher and Catcher

Sugino is discovering things about himself, not sure if he’s a pitcher or a catcher, but with Koro-sensei he doesn’t need to pick. Koro/Sugino

Isogai’s Reward

Isogai works so hard sometimes neglecting his own needs. Koro-sensei won’t stand for that. Koro/Isogai

Itona Loves Tentacles

Itona did miss one thing about his tentacle, something he used to explore in his alone time. Koro-sensei is happy to help. Koro/Itona

Fear of Submission

Karma always thought he was a top dog, he had an intense presence, and a sadistic nature. That’s probably why Nagisa scared him so, he wasn’t intimidated, and behind the gentle smile and sweet eyes was a deadly beast. Nagisa/Karma