Butterfly Protector (Shinobu x Male Demon Reader)

Kano's Death

Kano Pov
I just got a mission from master saying that a very powerful demon was attacking a nearby village and he wanted me to kill that demon. I accepted the mission without thinking. Upon my arrival I find the demon eating a corpse. He senses my presence and says "Hmmm, The Ice Hashira. This should be good". As I get a good look at his face I realize he's upper moon 1 Kokushibo. I draw my blade and ready myself for combat. In a blink of an eye out blades collide and we are in a struggle for the upper hand after about 2 minutes he manages to push me off and begin his assault but doesn't realize that during the struggle I mumbled " Ice breathing Second Form: Cold Stare" I begin blocking and parrying his attacks when I caught a glimpse of red eyes behind the demon which made me lose train of thought.
??: Well done Kokushibo. It seems you may have found your match.
Kokushibo: Yes master. He is a very skilled swordsman unlike any other I faced before.
??:. Ah Demon Slayer are you perhaps a Hashira
Kano: Yes.... I'm the ice Hashira
??: My name is Kibutsuji Muzan, the Demon King
Kano stands there in complete shock
Muzan: I hate to cut things short with you and Kokushibo but I'm afraid we will have to wrap it up now
With that Kano I readied my blade to charge Muzan but was blocked by Kokushibo after about an hour Kokushibo and I are both bloody and I'm tired on the verge of losing conscious due to blood loss. I decide to give it all on a last attack and Kokushibo seems to understand I grab my red blade and ready myself.
RAGE BREATHING FINAL FORM UNDYING!!! I yell charging Kokushibo as he charges me with his own attack.
Muzan Pov
Once the dust settles I'm able to see Kokushibo with a blade lodged deep into his neck while the Hashira on the other hand has Kokushibo's blade through his stomach. I'm surprised anyone lasted this long against my best moon.
Kokushibo: What shall I do with him master?
Muzan: I'll make him a demon
After Muzan injects a lot of blood into Kano he leaves with Kokushibo.
About 5 minutes later Kano's crow lands on his body and sheds a tear seeing his owner dead beneath him so he flies to the master who is saddened to hear the death of his strongest child.
He decides to call a meeting for all the Hashira
The meeting
Gymoei: Hello everybody. I pray you are all in good health
Muichiro: What shape is that cloud?
Obani: Something is off ...
Mitsuri: I'm so happy everyone is alive and well
Tengen: I wonder what Flashy news the master has for us
Giyuu: *Silence*
Sanemi: This shit isnt right
Rengoku: Something is definitely not right here
Shinobu: (in her head) Where is Kano
Suddenly the master comes out
Master: Alright my Hashira I will get straight to the point ... Kano has died in a battle with upper moon 1 last night.... You all have the day off to give your condolences thank you for your time
Gymoei: Rest easy friend
Muichiro: I actually liked that guy sad he's gone. Now he's in the clouds resting. He deserves it
Obani: No! I refuse to believe that someone like Kano is dead!
Mitsuri: Oh No! I'm so sorry Kano-kun rest easy
Giyuu: That was the one person I  considered a friend...
Sanemi: Dammit! Who the fuck am I gonna train with now!
Tengen: I bet he went out very Flashy.. rest easy my brother in Flashiness
Rengoku: He set his heart ablaze in his last moments
Suddenly all the Hashira hear crying and look over to see Shinobu crying
Shinobu: No... No... No... Please tell me this isn't true. There has to be some kind of mistake. Kano isn't gone please not Kano... First Kanae now Kano....
As Shinobu finishes Kano's Ice blades were brought in from Kano's swordsmith. He leaves them with Shinobu and apologizes about Kano's Death

In a random forest
Kano: I'm a demon now .... I can't go back