This Isn't Right (Sanegiyu)

Chapter 1 - How'd This Happen?

If Nezuko ever ate a human, Sakonji Urokodaki, Tanjiro Kamado, and Giyu Tomioka all agreed to commit seppuku. It was an agreement that would let them keep her alive and for the hashira to leave her alone. Who knew that that agreement would come back to haunt their unknowing hearts. 

One evening, Tanjiro and Nezuko were sent on a small mission to figure out why people were going missing. It was a small town with a small population, there weren't any businesses selling their goods for miles. The place closest to them was at least days by foot to get there. With the description, Tanjiro wasn't surprised when it felt like a ghost town. There was no one walking up and down the streets, 'Understandable.' He thought to himself, as he walked down the dirt road holding Nezuko's hand. It has been a week or so since they were at the swordsmith village. Actually, its been a while since he was on a mission with his close friends. He could think about it for a long time. Something was itching the back of his neck, it was quiet, too quiet, almost like someone was watching their every move. Reaching his overworked hand to his side, he waited for a sign. Just then, he found the smell, a demon. Tanjiro was right, someone was watching both of them. It wasn't a lower or upper rank, just an average demon. Swinging his sword, the foul monster was just able to dodge his attack. To aid Tanjiro, Nezuko swung her foot, hitting the weak demon to the ground. 

Moving his sword over, he angled himself to kill the demon, "First form: Water Surface Slash!" In one slash, he was able to decapitate the demon, as he watched it fade away. Even after killing him, he kept getting this aching feeling that something wasn't right. Running down the twisting and turning streets, he tried smelling for a hint at what was making him uneasy. Nothing. How about the other street? Nothing. This one?! Nothing!

Tanjiro's attempts were all useless. But then, he looked behind him. "What a minute, where is Nezuko?" Behind him was nothing. "Nezuko?!" Panicking, he retraced his steps, running down the same confusing streets. About to start crying out of worry, he smelled blood. turning his head, he saw it. Nezuko with blood all over her mouth, drooling like crazy, standing over a human, bites all over and completely dead.  

"Calm down my children! I'm sure you're all wondering what happened." Kagaya Ubuyashiki was struggling over his curse, barely being able to move at this point. Everyone quickly quieted. "So, we heard something happened on young Kamado's mission last night. While he was trying to figure out missing person cases, his sister ate a human."

The room went silent as everyone turned their heads to look at Tomioka. His eyes were wide in disbelief, "That's.. but we all saw it! She didn't try and kill Shinazugawa!" 

"Tch, you gotta stop believing in that demon brat." Sanemi scoffed, "It was bound to happen." 

"Yeah," Obanai agreed, "She is a demon after all."

Mitsuri and Muichiro looked at each other, "But, Oyakata-sama, we worked with the siblings at swordsmith village, she never got close to eating a human!" Mitsuri was dumbfounded. How could she eat a human? Something isn't right. 

He coughed, making everyone worry about his state. "Just like Shinazugawa and Uguro stated, she is a demon, we had no telling if she would actually never eat a human." Frowning, he looked at Tomioka, "I know what you're probably thinking. Since Nezuko ate a human, Giyu will be made to commit seppuku this afternoon." 

"WHAT! THIS MUST BE SOME KIND OF MISTAKE!" Mitsuri cried out. 

"Oh my.." Shinobu looked at Tomioka, her already sad expression lowering. "Where is she now? And what about Tanjiro?" 

"They have gone missing, same with Urokodaki, he was supposed to join Tomioka this afternoon." The room filled with chatter, while Sanemi felt a lump in his throat. 'That fucking brat! You cost Tomioka his life!" The room cleared, and Tomioka was escorted to his room where he would be staying till the evening. It was a quiet and empty room. It wasn't like he would need anything anyway. 

Meanwhile, the last remaining hashira were arguing about what to do.  "We should just let him go through with it! He let a human get devoured." Obanai argued with Shinobu. 

Her eyes widened, "You're saying you want him to just kill himself?! I took care of the Kamados, there is obviously something we are missing!" 

Mitsuri was crying, trying to stop them from fighting, "Please stop!"

"A PERSON DIED BECAUSE HE WANTED THAT DEMON TO ROAM FREE!" 

"NEZUKO WOULD NEVER EAT A HUMAN!" 

"Please.." She cried, wiping her tears. 

Sanemi grit his teeth, "SHUT UP! Both of you. You made Kanroji cry." Fixing his uniform, he breathed in and out, "I'm getting a headache 'cause you two. So annoying." 

"Thank you, Shinazugawa!" Mitsuri smiled. 

"No need to thank me," He looked away, "I did it for myself." 

Muichiro was sitting by himself, playing with a stick and dirt. Tomioka was the only one who was similar to him, and he was going to die later that day. It wasn't fair. Nezuko wouldn't eat a human. Would she? At this point, no one knew. The evidence was so clear, but people who believed in Nezuko didn't want to face it. He just got his memories back of his past and this happened? No matter what, he didn't want to face the truth. Muichiro wouldn't show up for it. He knew that he wouldn't be able to handle it at all. Gyomei was with him at that moment. Being the strongest, he felt like he had to show that Muichiro will get through it. Knowing that the two were close, he knew how hard it would be on the young boy. He was only fourteen anyways, not an adult. 

Hours have officially passed. It was time for Giyu to commit seppuku for his unmet promises. Tomioka's wish was for Muichiro to not see him commit this act. He was young and didn't need to see that. The other hashira were standing around, all of them had mixed emotions. Obanai didn't know at this point if he wanted him to go through with it. He was standing behind the kneeling Tomioka, waiting to finish him off. hesitating, his hands shook as he moved the small ritual knife. After he stopped moving it, he took a second before stabbing it deep into his abdomen, sending a shock of pain throughout his body. Shaking, he started moving it across, moving it upwards.

"WAIT!"