☁︎︎ Third POV

Both Uzui and Y/n ran on top of roofs at insane speed. Neither of them wanted to slow down, neither of them wanted to stop unless it was to kill a demon of evil. They both kept on running side by side, listening.

A loud bang, crash and screaming caught the two male's ears. They both snapped their heads towards the sound, expecting a demon, an uppermoon.

Y/n eyes widened when he saw a similar green-yellow aura and a pink - now turning into red - aura. He clutched his haori sleeve as his eyes sharpened.

"Tanjiro-san, Nezuko..." Y/n muttered before he took off running.

As Y/n drew near Tanjiro's and Nezuko's auras, he could now see a dull, blood, red aura. His eyes widened a bit more seeing the aura color of an uppermoon. However, his attention and focus was at Tanjiro.

"Tanjiro-san!" Y/n called out as he entered the building, "Nezuko?!"

Tanjiro looked to his side and saw Y/n, looking slightly worried, "Y-Y/n!!"

Y/n eyes turned to a rabid looking Nezuko. He could feel his blood go cold. Nezuko has gone out of control. He hesitated to move where he stood, knowing how demons loved his blood.

Nezuko snapped his gaze from a terrified woman to a stunned Y/n. She started to claw towards Y/n, wanting to either scratch him up for his royal blood or keep him all to herself, not wanting anyone other than her peers, to touch him.

"N-Nezuko!! Nez-Nezuko please!! Go to sleep! Go to sleep!!" Tanjiro pleaded as his grip on Nezuko tightened since she became for forceful.

"Hey, isn't this Kamado Nezuko?" A voice spoke out, "She's flamboyantly progressing into a demon."

"Tengen!" Y/n called out.

Tanjiro looked up and there was the flamboyant sound pillar in front of him. His eyes widened at the sudden appearance since his senses were going haywire. He began to stutter out words as Y/n hesitantly walk up next to Uzui, not minding the uppermoon demon.

"You made such a huge show in front of Oyakata-sama and this is how it turns out!?" Uzui scolded.

"A pillar, the mate, came from that direction?" The uppermoon demon stated, "This saves me a lot of trouble..."

Uzui only side glared the uppermoon demon, he gently pushed Y/n behind him a bit, "So annoying. I'm talking over here. Buzz off. You're not an uppermoon demon, are you. You're way too weak. You're not the demon I'm looking for."

There was a slice, and the demon's head fell off, "Huh...?"

Both the demon and Tanjiro were shocked by the sudden head chop. Both of their eyes widened as the rooms behind the demon were also sliced up. Y/n, however, didn't even bat a glance at the sliced up rooms, for a second blood red aura was bubbling up in the first demon.

"Hey!" Uzui claimed as he grabbed Tanjiro's attention once again, "The fight isn't over yet. Do something about your sister!"

Nezuko began to gnaw on the blade that was in her mouth. She tried to break out of Tanjiro's hold as he continued to reach out for Y/n. Y/n didn't want to see Nezuko like this so his gaze was reverted towards the first demon in expectancy.

Uzui's nose twitched in irritation, "Dumb brats who gamble around have no place on the battlefield. sing her some plain lullaby or something."

"GAAAAHHH!!!" Nezuko screeched as she lunched herself and Tanjiro out of the room.

Y/n was quick to revert his gaze from the fallen demon to the Kamado's, "Tanjiro-san! Nezuko!" He shouted as he ran up to the window.

However, Y/n was pulled back from Uzui. Y/n quickly looked at Uzui in expectancy for him to let him go to help his friends that he was supposed to protect.

"Don't, Y/n," Uzui ordered, "The demon is out of control, she is bound to pounce on you when she gets the chance to. This is an order for your safety, Y/n."

Y/n pressed his lips in a line, "That 'demon' is Nezuko Kamado, she has a name for a reason, use it. I'm sorry Tengen-san, but I have to help the Kamados' no matter what. It was what I was ordered to do in the first place."

Uzui knew he could do nothing as Y/n ripped his wrist away from him and ran out the door. Y/n jumped out of the window and tumbled a bit as he landed on the ground, worry filled him as he ran towards the two Kamados'.

Y/n made a sudden stop as he saw Nezuko burst into tears, surprising him and Tanjiro. He slowly and carefully approached Tanjiro and Nezuko. He swallowed in a breathe that he had been holding in as he hugged the two close to him. He's been worried sick.

"You're okay, you're both okay, everything is okay now," Y/n muttered, comforting the siblings and himself.

Nezuko clutched onto Y/n's haori as she continued to cry her lungs out. She then continued to get smaller and smaller in size, until she was the size of a small toddler. Y/n held onto her like a baby as Tanjiro stared down at Nezuko in shock.

"She's asleep..." Tanjiro whispered as he began to cry once again, "Mother... Y/n... She slept... She's asleep..."

"Shh, everything is alright now, Tanjiro," Y/n hushed as Tanjiro cried onto his shoulder, "You both did amazingly. You don't need to fight anymore, I got it from here. All you need to do is watch your sister and be careful, okay?"

Tanjiro sniffed and looked up at Y/n in worry, "B-But what about you? I don't wa-want you to get hurt too."

Y/n only shook his head and place Nezuko in Tanjiro's arms, "You don't need to worry about me, worry about yourself and Nezuko. Besides, I do have the strength to be a pillar, after all."

Tanjiro hesitated but nodded nonetheless, "Please... Be careful."

Y/n could only glance back at Tanjiro and nod. He than quickly jumped back into the room that Uzui and the uppermoon demon were in. He was hit with the sound of whining and complaining, which shocked him a bit.

"I still haven't lost!! I'm an uppermoon!!!" The demon shouted with all her might.

"You've lost without a doubt," Uzui argued, Y/n walked up next to him staring at the demon.

The demon started to cry like child, shocking Uzui, "I'm really uppermoon six!! I'm serious!! I've even got the number to prove it!! I'm super awesome!!"

"Tengen-san..." Y/n whispered, but loud enough for only Uzui to hear.

"What is it?" Uzui asks, a bit pissed at the whining demon-child.

"There's a second demon."

Uzui's eyes widened as he did a quick scan of the room only to see nothing, "What... Where...?"

Y/n pointed at the demon who was yelling and crying, "Inside of her."

Uzui's eyes widened.

"My head got cut off!! It got cut off!!! ONII-CHAAAN!!!" The demon cried.

As if summoned, a thin, scrawny, skeleton-like figure emerges out of the first demon's body, groaning like the dead. Uzui was quick to shove Y/n behind him and slashed at the demons' at insane speed.

However, as Uzui stopped, he saw that he sliced nothing. Both him and Y/n snapped their gaze to a corner where the second demon was along with the first demon. They moved faster than Uzui, a pillar. So, these really were the demons Uzui was looking for...

"Crying's not gonna help," The new demon comforted, "At least attach your own head yourself. You really are lacking in the brains department, huh? Man, your face got burned? Take care of that thing. You were born with such a cute face, after all."

Uzui didn't waste any time and went head first into battle. He raised his blades, ready to bring them down onto - now both - of the demon's heads, wanting to slice their necks. However, the second demon turned to see eye to eye with Uzui.

"Tengen-san!!" Y/n cried out as he shoved Uzui out of the way.

Y/n shoved Uzui away from the slashes he saw coming. Blood littered his body from one of the main slashes as his haori was starting to rip a bit from the cuts. He let out a hiss as Uzui's eyes widened at him.

"Heh, not bad, our mate..." The second demon taunted, both Y/n and Uzui stared at the male demon, "You shoved the tall man out of the way, and I struck with the intent to kill too. Nice, man, niiice. You even did it with such elegance, of course that's to be expected from our mate. I will adore you. Maaan, I can't believe that you will be ouuurrrss."

Uzui's eyes angered as his face slightly distorted with irritation of how the demon talked about Y/n. He hated how a demon, who knew nothing of Y/n, already claimed him his, like Y/n was some sort of object.

Y/n's eyes seemed to have dullen a bit at the word 'mate'. He wasn't surprised by the words anymore, and honestly, he stopped caring to correct whoever called him that. He was just tired of the word in general.

------✧ ◦ ✦︎ ◦ ✧------
[A/n: Thank you
@_pixelpig_
For the fanart]