(nevermind that everyone knows that deku couldn't use any of it without harming himself)
(besides, he knew SHE didn't like any of the court drama any more than he did. she oughta thank him, really.)
it was another human. incredible. they forgot one of their own.
he's greeted by large, tear-filled eyes. if green eyes weren't jarring enough, the green hair sure as hell was. katsuki had travelled enough to know that most humans didn't come in that colour.
after a beat of silence, he huffs. "oi, do you have a tongue? i asked you a question!"
the human looked just as confused.
katsuki looks at him like he's stupid. "you WANT me to eat you?"
"no!" the weird human yelps, shaking his head frantically. "please don't eat me!"
he was getting annoyed. "answer my question then!"
deku frantically tried to think. he knew the demon boy had said something, but he'd been busy freaking out to really pay attention.
the dragon boy sighs irritably. "i asked what kind of human you are! you LOOK human enough, but you don't smell or feel like it."
"i..." he hesitates, because as frightened as he was, this dragon boy had yet to treat him with animosity. sure, he was annoyed, but he hasn't made overt threats yet. probably due to his own curiosity of what deku is.
"i..."
"what, don't you know?" the boy continues looking at him like he's stupid. he pauses then, looking thoughtful. "or are you just stupid?"
"but you don't even know what you are!" the boy snorts derisively. "that's stupid to me."
"you're mean."
but the blond boy looks amused. "yeah, so i've been told. what about it?"
wait... he's not angry?
"hah? why would i? it ain't wrong."
before anything else could be said, the boy was suddenly lifted by the scruff of his neck. the blond snarls, kicking at the air. "hey!"
the hand holding him belongs to an adult. same blonde hair, same fierce eyes, same scowl.
"HAH? as if some puny humans are strong enough to kill me!" the boy sneers. "go away, you old hag! i was busy here!"
deku freezes as she levels her glare at him.
the demoness blinks, baffled. "who is this?"
"a stupid human." her son answers.
"well then do YOU know what he is?" he challenges.
deku swallows at the cautious look she presents him, shrinking as small as he can.
"take a closer look at him, kid. that feel like a human to you?"
"he isn't." the old hag agreed. "he's both."
the boy flinches again. (he did that a lot)
katsuki stares, uncomprehending. "hah? how can you be BOTH?"
"we ain't having this discussion." his mother says flatly, dragging him away.
deku winces as she smacked him upside the head. "watch your damn mouth, you shitty brat! we ain't having this discussion and that's FINAL!"
the brat wrinkled his nose. "why?"
"because i said so! just LISTEN for me for once, will you!? didn't you feel the high level of purity around that area? do you WANT to turn into ashes?"
"katsuki, i'm SERIOUS." she scowls. "purification is one of the only damn things capable of actually killing us. you get any part of you purified and it ain't coming back. stay away from that village."
"because he's half human." mitsuki agrees wearily. "i'm still not explaining that to you."
"but it doesn't make sense! how is he half? that isn't normal!"
"it isn't."
"huh?"
she was ready to argue with him more on the subject, but to her relief, the brat quieted.
she should have realised that was a warning itself.
so deku was left alone for good, this time.
which gave katsuki the perfect opportunity to single him out.
he was figuring out how to draw him to the forest where they met when the kid makes it easy for him by going there himself without prompting
katsuki drops down from the tree branch. the boy whirls around, looking nervous. curiously enough, he seems to relax at the sight of him.
"i... didn't, really." the boy admits. "i just felt like someone was watching me. but it didn't feel angry? i know what that's like. and i still felt you looking even when no one was around, so i just..."
"guessed." katsuki finishes. "that's stupid."
"but it is stupid." katsuki says flatly, crossing his arms. "you felt that someone was watching you and you decided to lure them out, alone, without knowing who it actually is. what were you gonna do if it wasn't me, huh?"
"exactly." katsuki says smugly. "stupid."
"what did you want?" the half-demon sulks, pouting. "why did you come back? your mother didn't seem happy that you were here."
the kid looks confused. "but... didn't your mother already say..?"
"so you DO know what you are!"
"tell me then!"
"but your mo - "
"i don't CARE if she said it! i want YOU to say it!"
katsuki tilts his head. "unless... you WANT me to think you're stupid?"
"i'm not stupid!" the boy protests.
"then spit it out!"
"i'm a half-demon!"
the half-demon squirms at his proximity. "my mother's a human and my dad's a demon." he mutters.
"that's weird." katsuki tells him bluntly.
the boy flinches.
"what? it is! how was that even possible?"
katsuki wrinkles his nose. "that sounds lame."
"no it's not!" he protests. "i'm here, aren't i?"
that made him pause. "i guess you are." well that answered that, he supposes. "so what kinda demon are you?"
katsuki rolls his eyes. "you really are stupid."
"you're mean," the boy frowns. "just because i don't know what you mean doesn't make me stupid."
"whatever, dummy."
"can you just explain your question?"
"a... demon?"
"a DRAGON demon!" katsuki puffs his chest out.
"how come you don't have wings like your mom does?" the boy blurts out.
the boy flinched again, which was starting to get annoying. "stop that." katsuki demands.
"that! i didn't even touch you and you're already acting like i stepped on your foot!"
"s-sorry!"
"just answer my question already!" katsuki barks. "what kinda demon are you?"
"i don't know!" the boy admits, eyes beginning to mist up.
"stop yelling at me!" he sniffles, wiping at his eyes.
"auuuuughhhh, you're such a baby!"
"well you're mean!"
"what?" he demands.
"n-nothing!" the boy squeaks, flushing pink.
"your name fits you." katsuki rolls his eyes. "deku."
"yes it is." he folds his arms. "i heard the other humans call you that."
"my name's izuku," deku protests.
katsuki stares at him strangely, suddenly crouching down and writing something on the floor.
"you can't?" he scoffs, then points a clawed finger at the word he wrote. "this says 'deku'. you can also read it as 'izuku'."
the half-demon boy crouches down beside him, looking at him hopefully.
"what?"
"hah?" katsuki furrows his brows. "why would i? go ask your old hag!"
"she's not an old hag." deku frowns. "and... i would but mom is always busy."
"not my problem."
"please?" deku puts his hands together. "you made it look so cool!"
he puffs his chest out, preening. "well, DUH. of course i did!"
those eyes continued to stare at him.
"ugh, FINE. but JUST because i got nothing else to do, got that?"
katsuki writes down his own name. "this says bakugo katsuki. that's my name."
katsuki looks at him oddly. "no. it's kat-SU-ki. there's no 'ch' in that!"
he looks flustered. "k-katschuki?"
"no! it's TSU! not chu!"
"katschuki!"
"mean!"
"how am I mean? it's your name!"
"no it's not," deku protests. "at least i'm saying your name!"
"oh yeah? say it then!"
"kacchuki!"
"that's not my name, shitty deku!"
katsuki wrinkles his nose. it was a slim chance, but he didn't want this somehow going back to his mother. bakugo was a prominent name, and katsuki's was even moreso.
"call me kacchan."
this way, even if deku starts talking about a 'kacchan', there's NO way the old hag would figure out it's him!
"at least you could say that." he snorts.
katsuki shakes his head, writing the name right beside it. "no. like this."
the half-demon nods, reaching for one of the twigs and clumsily beginning to sketch his own lines in the dirt. "like that?"
"kacchan's a jerk."
"and you suck." katsuki snorts, getting up.
deku looks up, looking surprised and something else katsuki wasn't sure. disappointment? "oh... are you going?"
the half-demon perks up, eyes bright with an equally bright grin. "i will, kacchan! i'll see you tomorrow!"
deku smiles down at the letters etched on the floor, feeling lighter than he has for a long time as he practiced his strokes until they resembled the original.
he didn't want to disappoint his new friend.
but rather than locking katsuki up or killing deku, she continues to let him see the half-demon, even though she obviously disapproved.
it was fine, katsuki had said. because they can figure it out together anyway. they tested what they could of deku's abilities, pushing his limits until his holy powers began to flare.
to his alarm, his friend bursts into tears. "it's my mom." he sobs.
"what about her?"
"she's dying."
he couldn't finish, dissolving into despair. bleary eyes looked up at katsuki, pleading. "kacchan, i don't know what to do."
he knew that the passing of deku's mother may as well be a death sentence for her son. deku, who was well beyond 20 years remained as youthful as a 5 year old human. and they would drive him out of the village to die.
despite his own mother's warnings about holy beings, deku's mother was similar to her son. nervous, but ultimately kind. despite being a powerful priestess, she harboured no ill will of demons.
she would know. she served the village for years, protecting it and its people. yet they would still drive her son out the second she had worn out her use.
they both knew deku would not survive on his own.
"he can stay with me."
the relief in her eyes was painful. "thank you."
katsuki steals him away before everything was engulfed in flames.
he helps deku dig a grave, lowering inko into the soil, and standing by as deku prayed for his own mother's burial.
lesser demons were also on the prowl, constantly looking for their next meal.
he takes him to the capitol.
it didn't take long for the news to reach bakugo mitsuki.
"so be it!" katsuki snarls, fangs bared in challenge. "i'll destroy every last one of them."
"i promised to protect him!"
"you also promised to protect them."
the young lord raised his chin, meeting their eyes defiantly. "both are mine. so i will protect both."
mitsuki shared a look with her mate.
with a sigh, she pinches the bridge of her nose. "so be it."
he was not allowed to go around on his own, and any misstep on his part would be katsuki's responsibility.
basically, he was a pet.
for his part, deku was fascinated by how similar the demon village operated to a human one.
but the peace didn't last when it was revealed that deku possessed powers of purification.
deku had been with him when they were attacked.
instinct took over at the realisation that his dearest friend was in danger, and the demon turned to ash.
the surge of purity sent the capitol into panic.
the only people within the room were her son and his half-breed.
crumpled at the floor was a pile of clothing and a poisoned dagger, covered in ashes.
they all knew who sent the assassin, but they possessed no proof when the assassin was purified. there was nothing left that could be traced back to the belongings that remained of them - no scent, no energy, nothing.
there was a holy being in their midst.
they wanted him killed. no one felt safe with a holy creature so closeby. regardless that the only reason it was revealed was to protect one of their own.
aizawa and chiyo had informed him of what would happen. the meeting was merely for propriety's sake. one way or another, the demons would have demanded deku's death to ensure their own safety.
that dumb brat. as if she would have allowed them to kill the boy when she knew just how much he cared for him. his reckless actions had only made this more complicated.
as mitsuki sent out the order to help bring her son back, she also sent a request to a very old friend.
they had stopped at a nearby cave. both of them were in need of rest - kacchan had been flying nonstop the second they were past the border, and deku was still worn out from the purification
just because deku was an abomination of the world that didn't belong anywhere.
nobody deserved that. least of all kacchan.
neither humans nor demons wanted him around. and the only people that ever loved him were suffering just from association. he knew that his mother had worried herself sick over him. knows that the same is happening to kacchan now
"give me a few more minutes and i should be good to go for another few hours." kacchan grunts, starfished beside him on the floor.
deku cups his cheek. "kacchan."
crimson eyes fluttered open. a worn thumb sweeps beneath the dark shadow beneath his eye, heart aching.
kacchan stares. "excuse me?"
deku swallows, feeling heat collecting in his eyes. no no no. please. let him get through this without crying. "i said you should go back."
"kacchan--"
"have you forgotten that they're hunting you down?" he demands. "i get that you've never had a hint of self preservation in you from the start, but they want to fucking KILL you, deku!"
"of course not!" frustrated tears rolled down his face. "i don't want to die! but i don't want you wasting your future on me either!"
"but it's true!" he grabs the clawed hands gripping him. they were trembling. "kacchan, we both know i'm just dragging you down!"
"then don't drag me down!" the blond shouts. "get stronger so that no one can ever harm you! quit giving up on me!"
oh.
izuku reaches up, framing kacchan's wet face.
"you don't get to give up on me!" his voice breaks, breaking izuku's heart along with it.
"kacchan," he says softly. "to do that, you have to go back."
he knows they won't stop until they find him. knows that being with deku was just as likely to get him killed as leaving him alone, knows that deku isn't helpless, that even if his purification still hurts him, aizawa ensured that he wasn't defenseless.
he doesn't know if he could.
but he does know that leaving him was the best thing he could do for deku right now.
"kacchan--"
"promise me."
"...okay. i promise."
"get stronger." he says fiercely. "and stay alive."
deku sniffles against his shoulder. "i will."
when he leaves, neither of them say goodbye.