I dont think he'd be able to do that. He knows how it feels to lose people so if not for the person he would kill, then he'd think about their family
Zenitsu Agatsuma
I think he actually might. If they hurt you in some kind of way, he'd definitely see red.
Inosuke Hashibira
Once again, I believe he would. He was never brought up believing that murder was a horrible thing and in the animal kingdom, it was seen as normal and survival of the fittest.
If he found himself against extremely tough competition, I could see him just killing them off for your attention.
Genya Shinazugawa
He might. But more than likely, he wouldn't.
Pillars
Giyu Tomioka
He wouldn't but he definitely could. He will non verbally threaten people though.
Kyoujouro Rengoku
Yeah. I feel that when it comes to you, he would go to extreme lengths. He wouldn't tell anyone though, and you'd never suspect him- your little ball of sunshine.
He would do it out of a need to protect you so if it's someone he thinks is a bad influence on you, he will dispose of them.
Sanemi Shinazugawa
No doubt. He has the tooth bat ready at all times. You'd kind of expect it but he literally leaves no evidence that they ever existed.
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(Sanemi waiting for your bf like^^)
Muichiro Tokito
Nope
I think he knows he isn't cut out for murder that doesn't dispose of itself.
Shinobu Kocho
Yes. Absolutely
She's a vengeful person, and she will not hesitate to take it out on someone other than you.
Mitsuri Kanroji
No, she's too scared that you'd find out and never want to see her again
Obanai Iguro
I think he might but once again, he'd be very good at covering his tracks
Demons
Muzan Kibutsuji
You already know the answer.
He doesn't even try to hide anything. He won't talk about it but somewhere in the world, a family is dead.
Yushiro
He might but only demons. He might beat anyone who really gets too close to you for his comfort.
Nezuko Kamado
Nope, unless its to protect you, in which case she will not hesitate
Upper moons
Douma
Once again, you really don't need me to answer this one.
He's gonna kill then and he'll come back and talk to you about the problems he had to overcome to dispose of them (AKA he's gonna moan that they didn't taste nice)
Akaza
He would but he wouldn't want to talk about it in case it scared you away. He does it for as legitimate reasons as possible, like protection or revenge.