Chapter Text
1
As the sun rose Tanjro and Nezuko climbed up the mountain to their house after selling their entire stock of charcoal. As the two walked home, Tanjiro caught the scent of blood.
“What’s wrong?” Nezuko asked frighteningly. Before she could finish, Tanjiro started to run up the mountain with Nezuko running right behind him shouting, “BROTHER WAIT!”
(What happened, I always knew that Tanjiro has a keen sense of smell that lets him lets him sense danger but it’s never seemed this bad before, what could have happened this everyone at home alright?)
As the two reach their house they see that blood is everywhere. “Mother it’s us, is everything…” Nezuko stopped as she saw Tanjiro on his knees looking inside the home as if his life was sucked out of him.
When she looked inside she stood in horror as she looked upon the bloody corpses of their family.
2
Soon after the twins finished mourning the death of their family and buried their corpses, an unknown figure with a sword approached them and drew his blade at them.
“Where’s the demon?” he asked.
“Demon, what do you mean?” Tanjiro asked with confusion.
The swordsman sighed and explained, “The thing that killed your family was a man- eating demon, my job is to kill demons and you two clearly don’t know where it went.” The man started to walk away, terrified and filled with rage with their families death the twins yell out at the man.
“These demons, can you teach us to kill them, if a demon killed mom and the others, I can't just stand by mourning while their lives go in vain. Please, I’m begging you to help us. I'll do anything to avenge their lives.” Tanjiro shouted with Nezuko on her knees saying,
“We’ll go through the darkest pit of hell in order to find the monster that killed our family if we have to, no matter what we will kill all demons if we have to, I promise on my life”.
The man stopped and began to think,(These two seem capable and they have better survival chances when they’re together). Then the man gave them a map and compass saying, “Go to Sakonji Urokodaki’s house 8 miles from here when you get there tell him that Giyu Tomioka sent you”. “THANK YOU” Nezuko shouted while crying over her family's death.
After gathering all the money and supplies they needed Tanjiro and Nezuko began their journey to become demon slayers, as they left their home Tanjiro reflected on his life with his family and after looking at his sister forcing a smile the two descended the mountain.
3
Nezuko had started to sprint to the location in order to keep her body physically prepared for their training. Tanjiro trying keep up with Nezuko’s speed pantsed while staying determined to get stronger, (Nezuko was always the bold out of us all, even when when something went wrong in the village she always tried stopping it with brute force to protect the younger ones, we have to avenge them no matter what), “Nezuko wait up please, you going to waste all your energy!” Tanjiro shouted.
For the next 2 years Tanjiro and Nezuko trained to become demon slayers and mastered water breathing more efficiently due to dual style attacks and cooperation with each other enhanced the skills.
Nezuko's greater flexibility and stamina allowed her to master water breathing more quickly than her brother, which Tanjiro got a little jealous of. The twins soon invented their own unique breathing form.
Water breathing 12th form dual dragon tsunami which dealt a long range attack a mix between forms 1,10,8,and 6 to deal a powerful attack caused by two water users to unleash a barrage of water dragons to take out multiple enemies (strongest form of water breathing). After two years of mastering their skills the twins went to final selection. When there they encountered a demon that ate a majority of water breathers.
While fighting Nezuko took a bite off the demon's arm to free herself after which her wounds started to heal incredibly fast, she concluded that eating demon flesh gives the consumer temporary healing powers. After getting their composure the twins unleash the 12th form as Nezuko attacked from the front while Tanjiro sliced off the demon's head from behind. After surviving final selection the twins get their swords.
While Nezukos sword turns bright red Tanjiros sword turns black. The swordsmith starts to climb up on Tanjiro uncomfortably as Nezuko tries to pull him off her brother.
The next day a crow comes down, ordering them to their next mission. That night before leaving their master told them about Muzan the demon king and the lower/ upper moons.
The kamado siblings would go on to kill 12 demons within 2 weeks of joining the corps due to their skill in tag teaming the enemy. Their next mission was to go to Tokyo in order to investigate demon activity.
“There’s so many lights I don’t know if we can find anything unusual,” Nezuko whispered in shock at the big city. “Just hold my hand Nezuko and I’ll…” Tanjiro stopped as he caught a familiar scent of blood that he found in his house after his family died. He stopped still in the middle of the street silent which made Nezuko worry, “What’s wrong Tanjiro?”...
“Follow me Nezuko and be ready to fight. I just found the scent of the demon that killed our family.” Tanjiro started to rush through the crowd as Nezuko followed behind, (This is it, this is what we’ve been training for, finally after two long grulling years of training me and Nezuko will finally avenge our family’s death)...
Tanjiro looked in shock to see that the demon who slaughtered his loved ones was more human looking than demonic looking and that he had a human family. The shocked twins stood in silence when suddenly the demons claws struck a bystander turning him into a demon as they attempted to stop the newly turned demon, Nezuko shouted out at the top off her lungs “It’s the demon king Tanjiro, he’s the only one would can turn humans into demons, (That bastard destroying this civilians life as a scapegoat, I swear I won’t rest until i behead that monster). “Muzan, we know your face, we will expose your identity to the world and one day destroy you.” Tanjiro shouted as Muzan slipped through the crowd.
Suddenly a colorful mist surrounded the wins as they found themselves passing out and waking up in a house greeted by two demons.
“My name is Lady Tamayo, I’m a demon doctor who is allied with the master of the demon slayer crops.
4
Nezuko immediately drew out her sword after learning they were in the presence of a demon but muscles became numb due to the demon's mist.
“I promise you that neither of us will bring you any harm. We do not serve Muzan and don’t need a large amount of human blood to survive, we only get blood through donations of charity workings” Lady Tamayo said.
“Why in hell's name should I ever trust a Demon? Do you have any idea what your kind has done to me and my brother” Nezuko shouted out, putting her body in front of the waking Tanjiro. Then the demon threw the twins multiple letters sent from the demon slayer's crows to them.
“You can trust them Nezuko, their scent doesn’t seem misleading and they haven’t eaten us while we were asleep so that's a good sign” Tanjiro said as he got up.
As Nezuko drew back her sword she asked, “If you’re demons why don’t you work for the demon king?” Mrs. Tamayo telled the twins the story of how she escaped Muzans control and has been trying to make anti venoms to demon poison attacks and to make elixers to kill demons.
While there Tanjiro and Nezuko learned about the structure of the demon slayer corps and soon their crow gave them orders to escort Lady Tamayo to the demon slayer headquarters for protection.
Meanwhile Muzan summons the lower moon demon Rui and his spider family with a dozen other powerful demons, “YOUR ORDERS ARE TO FIND AND KILL THE TRAITOR TAMAYO AND HER SLAYER ESCORT BEFORE THEY REACH THE HASHIRA, FAILURE IS NOT AN OPTION!” Muzan demanded.
As the demons left Muzan remembered the earrings the boy in the city was wearing and wondered, (It seems that family was related to you after all Yurichi, I don’t know how they survived but I will not let this error change anything).
A couple of days later as the twins help the doctor travel to HQ which they can only due at night due to demons weakness of sunlight, 3 other demon slayers joined their group by orders of the master, Inosuke,Genya (wind hashira’s kid brother), and a blond boy named Zenitsu.
TO BE CONTINUED.