Y/n is the most powerful demon and swordsman. He was a demon at birth and was abused. He was adopted by the Kocho family. Soon falling in love with Shinobu Kocho. Y/n has a brother that is a demon.
We are at the headquarters. All of the hashira have been summoned by the master. He is not here yet. We are taking to one and another. I am talking with Shinobu, Kanae and my brother.
"So what do you think this is about." Kaigaku says
"Probably more upper moons showing up. I kill the upper moon 1. It was not as enjoyable as I would like it to be but I can't wait to the lower moons. Hopefully Muzan didn't already kill them." I say happily.
"That is probably what this meeting is about. Hopefully we are together for this." Shinobu says
I give her a warm smile.
"Same." I say.
"Y/n you know about the upper moons. Which is the most dangerous." Kanae says
"Doma, he is the upper moon 2. He loves eating woman. If you see him tell me and I will make sure his death is painful." I say whole smiling.
"You some how find pleasure in this. Why and how?" Kaigaku says.
"Because they are the ones who took everything away from me and I will make sure death isn't painful so no other has to suffer." I say happily.
Kaigaku chuckles and Shinobu sighs. She gives me a side hug. I kiss her forehead. I push Kaigaku to Kanae and he blushes when she catches him. They both blush. Sanemi glares at Kaigaku and they have a stare off. The master comes out and we bow.
"Hello my children. I have called you all here because Muzan has been spotted. You all with be going in pairs of twos do go against the upper moons. There are 4 left with Y/n killing both two. We must act now while they are still regrouping. Y/n will go alone to face Muzan. Y/n will lead into the fortress. Now go my children and rewrite history." The master says.
I look up at him and nod. I take out my fans. I kiss Shinobu's cheek. She blushes.
"Y/n are you heading out now?" Rengoku says
I nod and give a sadistic smirk. This will be fun. I sniff and smell them already here. I immediately look up at the master. The look is in his eyes. I smell more coming. If all of us go then no one can protect him. Is this his plan. I can't let him die. I will break his curse but I was given an order. The master nods and I walk out tu mansion. Liones follows me but I in back of the mansion. I sense Muzan near by. I won't let the master die but what if the others need me. They have Kaigaku but with if Oyoto shows up.
I try to decide the best option.
"Liones protect Shinobu and the others." I say.
Liones thinks for a moment and goes but without looking back. I give Liones a sad smile. I have a plan I told the master. I plan to die today and I will. With his poison I can't beat him and still live. I will protect the master for all he has done for me. I go into the mansion and see him.
"Y/n I see you understand my plan and you have one of you own. You told me yourself." The master says.
I look around to see if anyone is listening to us or watching. The demons are coming but are some what away.
"I plan to die today if not and I am human I will die anyway. I could keep being a demon but what will that do. I will be immortal while the others age. I can't live that way. I plan to use all my energy into one attack." I say.
The master is processing what I just said. He knows or my illness I had. If I am not a demon I will die of my illness. Shinobu would probably only get 2 months with me at most.
"Y/n are you sure this is the best idea. We can find a cure." The master says.
"Not with my illness. It is too late for my human body. I want to die a human but I don't want to see Shinobu having to watch me die slowly." I say.
"You have a point but Y/n what about the others. Shinobu wont just be the affected by your death. The whole demon slayer corps will be in shock by this. You have had a great deal of impact on people and the good kind. Even to Inguro who I have seen treats you with not the best hostilities but deep down he respects you. Everyone will be sad including me." The master says.
I give him a look of grief.
"We only have 10 minutes left. I guess I should explain more of why I am doing this in first place. In all my life I have committed sin. Be being born is a sin but I committed the greatest one of all. The killing of innocent people. After the people that I loved died I went on a rampage and took many lives that day. I took a life and now I must repent for it. The families should get closer of who there murder was." I say.
I sit down and sip some tea. The master pats my head and I let down a tear. I take out my mask I got from the restaurant. I have on my kimono.
What it looks like
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I take out my sword and get ready to fight. I stand up.
"Leave the rest to me master." I say
He says nothing but gives me a smile. I walk out of the mansion. Demons come over the wall. I kill them without having to draw my sword. My blood demon art covers the area out side and the demons lungs explode. I kill all of them. I stab one in the eye. One comes in back.
"Time to get this stupid human." The demon says.
I slice his head off with my fan and I put it away. No one Can see my movement because I am going so fast. I see two of the uppers moons coming my way. Muzan has left. The master is still inside. I sigh in relief. I look up at the night sky.
"Shinobu I will always love you." I say.
I grip my sword and kill the demons with ease. The two upper moons are Akaza and Daki. She looks at me and smirks. I have hidden my scent so no one can tell if I am demon.
"Human move out of the way." Akaza says.
"I will make him my play thing." Daki says.
"Wait I sense how strong you are. Come fight me!!!!" Akaza says.
I hit him in the stomach and make a big hole through him while standing still. I went so fast that no one could see the attack. Akaza falls yo the ground and spits out blood.
"How could a human have so much power." Akaza says.
Daki is scared. I cough a little and walk up to them. Akaza is ok. I will give him a quick death. I kill both upper moons in an instant. I walk back to the mansion. They are both wide eyed. I lift up my mask and they see who I really am. I laugh and give them a demented smile.
"I hope you burn in hell bastards." I say while laughing.
I sit down and watch as they disappear. None of them say anything. They don't have to for me to know what they are thinking. I relax and wait for the next horde to come in. Muzan really hates the master I guess. I put back on my mask.
The master can not just sit and wait for his child to die. Everyone will soon know the fateful truth of Y/n's plan.
