Your POV

I was able to go back to my house in three more days and started making the instruments immediately. It took me eight days to do it so i had 13 more days to prepare for the battle.

"Should i go? Or should i not?" I asked myself.

"Having difficulty?" I turned to see dominic.

"Oh hey.." i said to him.

"So, wanna talk about it?" Dominic asked.

"Well... A few days ago i met one of my friend from somewhere else....they said i should go back. I already told them repeatedly I wasn't the same as back then." I said.

"Continue.." he said.

"She told me she doesn't care...i know she likes me but...i should leave the past behind me and move forward." I said.

"I see...so you feel guilty about leaving us and not coming with them?" Dominic asks.

"Yeah...." I said solemnly.

"Is there more you want to say?" Dominic asks.

"I see you still catch on to me very fastly." I said.

"Well, when i was in asakusa...another pair of my friends came to try and force me to come back....i fought them off and left as i felt guilt from not loving my other friend back..."i said.

"You know...its a good thing that you listen to your heart and not someone else's words." Dominic said.

"Then...theres a war..." I said truthfully.

"A war? On your homeland?" He asked.

"Yeah..." I said.

"Don't worry about us...we may be family but we trust you enough to know that you can take care of yourself." Dominic assured.

"Then...you don't mind if i bond with you all before i leave?" I asked.

"Yeah...that would be spectacular." Dominic said.

3rd POV

The next day, Hanzo began bonding with Dominic, his sisters, and his mother. No matter what they wanted to do with him, he did so without regret.

Although he has this sadness inside him that they might not see each other, he still put it aside and just bonded with the family.

Five days later, he began going to the ubuyashiki estate and began visiting Kagaya. The man had been placed in a very special spot on Hanzo's heart as the one who can listen to his wishes and his stories.

"Kagaya, i came to visit." Hanzo said.

"Oh please do come in." His wife said.

Hanzo POV

"Do you know where kagaya is?" I asked her.

"Oh, he's in a meeting with the current pillars." She said.

"Oh thanks for the info. Can i know where he is?" I asked.

"Oh, he's at the porche with the pillars." She said as i excused myself.

"I came to visit kagaya." I said.

"Hey, who do you think you are to call oyakata sama by his name!" The boy with white hair asks.

"Not to worry sanemi, he's fine. He is the friend i kept telling you whenever you ask." Kagaya said.

"Oh, thanks." I said. I sat beside kagaya as the other pillars get mad.

"Get away from oyakata sama you filthy demon." The boy with a snake said.

"Wow.... he's so daring to seat beside oyakata sama...so cool!" The pink haired girl whispered.

"Ohhh its Hanzo san!" I heard a voice.

"Urkh....kanae...." I said disappointed that i showed myself to her.

"Oh come on. Don't you enjoy the times i visit your town and during your classes too?" Kanae asks.

"Who would want a girl who doesn't care about anything stalking you constantly!" I yelled at her.

"hahahahahah!!! I like that spirit! However, a demon should be slain nonetheless!!" The boy who looked like valir said.

"As flamboyant as he is, he deserves to die!" The ninja said.

"Woah, are you valir's descendant?!" I joke around.

"Valir?? Im sorry!!! But i dont know who that is!!!"the boy said.

"Oh, you must be the demon oyakata sama ordered us to find. How kind of you to show yourself to us." The man who was blind said.

"I didn't actually showed myself...kagaya looked for me..." I said.

"You dare make oyakata sama get tired?!" The snake boy yelled.

"Iguro! Control yourself!!" The fire boy said.

"Shut up kyojuro!" The now mentioned iguro said.

Kagaya just laughed at our antiques as we looked at him.

"Seeing you all lively makes my day even better. Im sure you all will get along very well." Kagaya said.

The meeting ended as the other pillars left except iguro, sanemi, kanae, and mitsuri. I stayed in order to talk to kagaya.

"Kagaya...i have 8 days left..." I said.

"Eight days? For what?" He asked.

"I'm going to war." I said bluntly.

"I see..." He said.

"Ara?~ your going to war? I never mentioned that you can go die on us~" kanae threatened.

"Dont worry about me. I can take care of myself. I can Become the undead king in seconds." I said.

"Is that so?" Kanae asks.

"I may not look like it, but im strong. I wont be defeated in war very easily. They'd have to kill my demon soul before actually being able to kill my real body." I said.

"Oh is that so?" Obanai said.

"Don't even try kid. Three v one and i still won back on my homeland. Even doma with his unlimited followers vs me i survived. And they were very strong." I said.

"Tsk..." He lowered his hand.

"Well, this is the first time i talked to a strong demon." Kanroji said.

"Thanks for the compliment but i came to inform of this situation." I said as i pulled out a kunai. Hanabi's kunai to be exact.

"Have you crossed paths with uzui?" Sanemi asks.

"Tengen? Who the ninja dude? No. The three v one was me against two ninja and a mage." I said.

"A mage?" They asked.

"You won't understand. Anyway kagaya, can i have permission to help train some of them?" I asked.

"Why would you want to train?" He asks

"Well, i want to bond with them before i left." I said.

"Hmm...that is true. Battles can help make bonds stronger. I don't see why not?" Kagaya said.

"Well, i also need this training. I may have gotten rusty but im pretty sure i can sharpen my blade in just these days." I said as i transformed the crop stick into ame no habakiri.

"oh ho?? Lets do this then!" Sanemi said as all of the pillars began their stance.

We went out to start and battled to our hearts content.

Eight days later.

I sat in my room and threw the kunai on the ground.

"Im ready." I said.

"Lets go then~" hanabi said as we vanished.

Two years later

Kagaya POV

"Send out Giyuu and Shinobu to help the mizunotos." I said as the kakushi began to run.

"When will he come back?" I wondered as i stared into the night sky.

I called my kasugai crow to tell them a message.

"Tell everyone to bring kamado tanjiro and nezuko here safe and sound. Tanjiro as a black and green checkered haori while nezuko has a bamboo muffler." I said as the crow flew away.

Your POV

"Aaaaaaaahhhh!!! I shout as i was falling from the sky.

"Wait, i could just transform!" I said as i turned into my demon soul.

"Now then..." I said as i saw i was up the mountain kagaya was living near in.

"Mount natagumo? Lets check this out." I said as i smelled lots of blood.

I descended and saw two familiar haori.

"Hmm...maybe they have grown up a bit... It will be seen later on." I said as i threw a kunai to the porch of kagaya's house.

"Ninjutsu devastator!" I said as i disappeared.

Tanjiro POV

Its no use, my blade is broken and no one is here. Some demons came here to be back up for rui.

"Any last words kid?" Rui asks.

Suddenly black slashes that smelled off came and slashed every reinforce ment.

"You alright kid?" A demon asks me.

"I-im alright!" I shout as i crawl towards nezuko.

"[Breath of the water]: Eleventh form...dead calm." Giyuu said as  rui gets decapitated.

The demon flew away and was never seen again.

Kagaya POV

"The oyakata sama has arrived." Kiriya and nichika said as we arrived at the scene.

I felt something near the trees and began to smile.

'i see he's back.' i thought.

One trial later

"Alright. Let the annual pillar meeting commence." I said.

"Hai." All the hashira said.

"I would like to address first that, a comrade of ours has come back." I said earning some confused looks to them.

"I would like you all to come with me tomorrow at the town." I said as they all agreed.

The next day.

We were walking towards the house and suddenly heard a piano playing.

'he IS back. He fulfilled the promise of coming back.' I thought.

"Oyakata sama? Why are we here?" Kanae asks.

"You will see." I said as we got to the door. We knocked three times and was greetes by a boy.

"Oh, its Kagaya san. Are these your friends?" Dominic asked.

"Why yes. Please excuse us from coming unannounced." I said.

"No worries. Im sure your looking for him? If so, please do come in. He's playing the piano in the music room." Domimic said.

"Thank you." I said as i memorize how many steps till we get to the room.

"Hanzo, please let us in." I ask.

"Wait- you mean?!" Kanae asked excitedly.

"Come in!" We heard a voice say as we opened the door.

Chapter end

Book end

Its an open ending. You can imagine anything at this point on.arry kanae or mitsuri, have a harem or whatever. Its up to you.