A Kingdom Hearts and My Hero Academia Supernatural AU Crossover

《Author's Note: A very dear friend of mine from Amino has given me permission to include her main Original Character into this story,for identity safety she goes by her oc name Cecelia Miyamoto》

Chapter 1: A Wrong Turn

Far away in a unknown yet magical place filled with magic,creatures and beings of darkness and of light all alike stood a tower in the massive city around it,it wasn't just any tower for within resided a warlock who was a retired Keyblade Master but was now a mentor,his name was Master Yen Sid.

Upon arriving near Master Yen Sid's tower was a lively yet impatient girl whose hair was white as snow in the sun in which its original hue was silver with eyes like ice as she motions to another female. "Hurry Cece,Master Yen Sid is probably waiting for us!",the silverette girl calls out waiting on her childhood friend. "I'm coming Rika calm down",the unknown female says,her eyes were like water itself with its hue of blue mixed with silver,as well as flowing raven black hair and skin the color of bronze,her name was Cecelia Harumi Miyamoto or Cece for short as that was the nickname given to her by Rika.

As the two friends trudged up the many stairs to get to the latch door on top,they finally reach it as Master Yen Sid looks up and smiles a bit,stroking his beard as per usual. "Ah Rika,Cecelia you made it after all,I was beginning to worry did you travel safely to get here?",he asks in a concerned tone as Cecelia being polite bows before speaking,standing up straight once more "Yes,we indeed did travel here safely we encountered no problems at all.",she says.

This makes Yen Sid sigh in a relieved way nodding his head "I have a mission for you both,you both must go to a city known as Tokyo,Japan to investigate why there is a sudden increase in darkness and evil."

The two friends look at each other somewhat shocked by his sudden urgent and serious tone but they both look back at him as they both bow "We will accept the mission",they say in unison as Yen Sid nods "I expected nothing more from my two best pupils,go now and dread carefully..and remember may your heart be your guiding key.",he says as the two friends straighten up and walk out the door,ready to venture off to start their mission.

Upon Rika opening the Door of Light,the two friends go through,however,things take a turn for the worst as they suddenly end up in a unknown forest in the middle of nowhere as Rika's eyes widen in complete shock looking around. "Uh where the heck are we?",she says as Cecelia looks around "I don't know but we need to stay calm and stay together.",she says as Rika looks at her childhood friend "How are you so calm and collected about this entire situation?!",she says as Cecelia shushes her! "Quiet-! We might attract unwanted atten-" "Oi?! What are you two intruders doing on my pack's territory!?",a unknown voice says as Rika squeaks whipping around seeing a male standing there. He had ash blonde hair with blood red eyes yet something was off about him,he had wolf ears and a tail and was dressed in almost a feral like way his canines showing as Cecelia gulps some knowing his was upset. "Listen we mean no harm,I'm Cecelia and this is my friend Rika,I sincerely apologize if we trespassed onto your-...um did you just say pack earlier??",she asks clearly confused as the male growls and snarls "yes I said pack weren't you listening?! Tch,dumbass.",he says as Rika was angered but kept her mouth shut. Suddenly the male snarls smelling something in the air "Vampires...listen if you wish to live and value your lives then come with me or I'll leave you here to be drained of your blood.",he says as Rika was terrified and Cecelia didn't know what to do as the male suddenly begins to walk away. "Oi?! Weren't you listening?! Are you coming or not!",he says as the two friends follow after him not knowing what he had in store by saving them.

Chapter 2: A Growing Attraction

After mysteriously encountering this male who looked more wolf-like than an actual boy,Rika decides to speak up quite scared at first. "Um what's your name? If you don't mind me asking of course.",she says as the boy looks at her out of the corner of his eye before huffing looking in front of himself again. "My name is Katsuki Bakugou,I'm the Alpha of my pack,however,it's mostly made out of males as there's hardly any females around,the females we do have already have mates or are secluded from everyone else because they don't like the idea of just males being in the pack.",he says.

However,upon seeing Cecelia every now and then Bakugou would often blush but then growls his ears down aggravated looking away harshly again as Cecelia was softly blushing..was she feeling something more for this male? Only time would tell as they soon come to a wide clearing with many unknown males roaming around either talking to each other or just chilling. Yet,upon sensing thier Alpha's presence they look suddenly wide eyed seeing two females with him as one male growls "Why have you brought two humans here!",he says as Bakugou growls and snarls causing the other to cower "One,never talk back to me in that tone! And two,because I f*king felt like it!",he snarls as Cecelia walks up to Bakugou "please calm down,I'm sure he was just upset and cautious as everyone else is.",she says as surprisingly he calms down and the other males look in shock starting to whisper to each other.

"I don't know where you two even came from or how you even got here,but I do know this..if you go back out there,there's bound to be a vampire or another creature out there ready to either snatch you,kill you or well feed off of you so you both will be staying in my pack until I say otherwise.",Bakugou says as Rika was about to protest but Cecelia quickly answers bowing a bit "we appreciate the hospitality and we humbly accept your generous offer.",she says as this makes Bakugou grin some,a small tad of blush on his cheeks as he leads them to a cave yet inside it looked like a normal room of a house with two beds,two cabinets and even a shower even though it looked man made it was something. "It may not be much,but its something.",Bakugou murmurs as Cecelia smiles "well it's rather welcoming and humble in here",she says as Rika thought so too as Bakugou cracks a tiny smile. "I'll leave you two be then,call me if you need anything.",he says walking out and going to his cave,sighing he takes a bath.

"Am I falling for her? Surely this has to be a mistake,she's a human and I'm...I'm a monster..she'll never love someone like me..."

Bakugou thinks as he sighs his ears down in a sad like manner as he puts his clothes back on once he was done and tends to his Alpha duties for the night.

Chapter 3:Meet the Pack

As it was now evening in Bakugou's pack Rika had nothing to wear as she pulls her hair. "Argh! We literally have nothing to wear to meet Bakugou's pack for dinner,well at least I'm cleaned off.",she says huffing looking away as Cecelia was wearing a black short-sleeve ninja dress with the orange sash,small black shorts for "underneath" and black stockings with possibly a beige or lightly orange slip-on shoes. She also has two swords: the Yamato from the green handle and "Kisara" from the other katana sword that's white."Not to worry Rika I got us covered for what we're going to wear.",she says as in the snap of her fingers,there is a white light as Cecelia is now in a light blue kimono with the designs of white lilies and apple blossoms with a silver sash around her waist,light-blue slip-on shoes,and the "under" kimono will be of silver white as then she snaps her fingers again as Rika is now in a light yet elegant and beautiful ice blue dress with blue flowers and butterflies on it as well as a blue and white flower headband and white sandals. "Oh Cece this is beautiful! Thank you!",Rika says as Cecelia smiles blushing happily "you look beautiful and are ready for a first impression.",she says as one male walks into the cave to escort them to dinner. He wasn't like Bakugou this male had red wolf ears and a tail as well as a feral happy look and positive aura around him as he introduces himself. "Hey there! I'm Eijirou Kirishima,Bakugou's second in command and I'm here to take you to the dining place where our pack meets to have dinner,what are your names?",he asks rather curiously but soon becomes shocked as Cecelia bows,as if she were bowing to a king or prince. "I'm Cecelia and this is my childhood friend Rika it's very nice to meet you Eijirou",Cecelia says as he blushes a tad "you guys can just call me Kirishima or Kiri everyone else does!",he says giving off a sharp toothed smile as Rika smiles and gladly follows him,liking his attitude already.

As Rika and Cecelia come face to face with the pack,all eyes turn and lock on the two their eyes wide in awe at how beautiful they were as to where the females just glared and looked away clearly jealous. Bakugou was talking to his third in command but upon seeing the two girls his eyes lock onto Cecelia as he was clearly blushing,which causes Cecelia to blush as well as the two childhood friends sit down and enjoy the meal prepared for them.

All was going just fine until an unexpected guest drops in on the pack get together and a bone chilling howl that would make even Rika and Cecelia go pale.

《Author's note: I'll be adding ocs of my own into this from now on from this point forward the ocs I'll be adding are Delilah Bakugou,Sakura Todoroki,Yumi Shinso,and Lily Saingye》

Chapter 4: An Unexpected Visitor

As everyone looks up wide eyed hearing the distressed wolf cry Bakugou immediately gets on his feet running towards the source of the cry only to see someone on the floor hurt and covered in slashes and bite marks as Bakugou's eyes widen. "No,Delilah! Dammit?!",Bakugou says as the person on the ground was a female wolf in human form who had badge wolf ears and tail and had white blonde hair..Bakugou's little sister Delilah.

"N...Ngh...Katsuki?",Delilah says her eyes opened slightly as Balug was shocked "I'm right here,who did this to you?!",he says growling pissed as Delilah pants grunting "It was Shinso's pack...they-ngh! He sent out scouts onto our territory...I was just coming back from hunting when they ambushed me and left me for dead..they broke my leg so I wouldn't get up to warn you and the pack..",Delilah explains as Cecelia and Rika show up and Cecelia gasps some seeing Delilah on the floor. "Excuse me miss,you're hurt!",she says summoning her keyblade and using a healing spell on Delilah in which Bakugou looks wide eyed to see her injuries were gone and her leg healed but she still lost so much blood. "Thank you miss-",Delilah says "It's Cecelia and you don't have to thank me,I help anyone in need",this makes Delilah nod as Bakugou carefully carries his little sister back to her cave Rika following as for within the shadows stood a figure looking right at Cecelia as she summons her keyblade. "Who's there,show yourself!",she says as the boy steps out,he had duo colored hair and eyes that gave off a eerie dream like shimmer to them as he looked pale and was dressed rather oddly,almost in a old fashioned like way. "Please I mean you no harm,I was just admiring your goddess like beauty from afar.",he says as even his voice was that of like silk so smooth and calming as Cecelia soon finds herself blushing. "Well I'm flattered but I must really get back to my frie-",she gets cut off "what is your name? I simply must know",he says as Cecelia poltiely smiles and bows then standing up straight once more "Cecelia Harumi Miyamoto,and you are?",she asks as the boy bows in almost a prince bowing to a princess "I'm Shoto Todoroki,heir to my clans throne and soon to be king,you see I'm searching for a wife -as his eyes glimmer- and you are the perfect mortal I've been looking for.",he says as Cecelia's body begins moving on it's own as she had no control as Shoto smriks just a tad "do not fight it my dear just come into my arms",he says his arm outstretched but Cecelia is pulled out of her trance by Bakugou yanking her arm back as he snarls and growls "Back off you damn vampire! Cecelia is mine got that and I'll be damned for a spoiled bloodsucker like you to take her away from me!?",this shocks

Cecelia as Todoroki growls backing off "you'll regret this you mangy mutt!",he says as he disappears into the night as Bakugou takes Cecelia to his cave "great first my rival pack then a f*king bloodsucker..",he begins to punch his cave wall but Cecelia stops him,gently putting her hand to his bloody fist. "Stop,anger doesn't always resolve everything",she says as Bakugou was more calm "yeah? well it gets the job done",he says as Cecelia sighs tending to his wounds "That male wasn't one of our kind,he's a vampire...please...you must promise me to stay away from him,promise me that much!",Bakugou says as Cecelia was shocked but she smiles softly "Okay Bakugou,I promise.",she says softly kissing his wound as Bakugou smiles finally opening up to her.

Chapter 5: A Plan of Attack

Bakugou has had enough as they needed to attack Shinso's pack back. "Now is the time to attack back! Shinso's pack has gone too far as to hurt someone the most closet to me.",Bakugou says "First we should get revenge on his pack by taking something of theirs!",Bakugou's third in command says slamming his fist on the table as another male huffs. "I heard he's got a little sister,mind you she's still a pup though.",he says as Kirishima was worried turning to Bakugou "Bakugou be reasonable taking pups from their home packs would be a horrible idea if that were to happen we could be starting an unesscacary war.",he says.

Rika and Cecelia were listening from nearby as Cecelia and Rika come out. "Um,pardon me I know it isn't my place to speak out but resolving violence with more actions of violence often leads to more trouble.",Cecelia says as Rika nods. "So please try to reconsider your actions I'm sure this is all just an honest mistake.",she says as Bakugou snarls "AN HONEST MISTAKE?! THEY LEFT MY SISTER FOR DEAD WITHOUT SO MUCH AS A WARNING!",He shouts at Rika causing her to flinch as Cecelia gets mad and it was clear on her face "Don't talk to her that way!! And she was just suggesting of you talking things out with them!!!",she says walking away as Bakugou puts his ears down a bit sad as he sighs and continues to plan.

"Cecelia,maybe you should go and apologize,he looked kind of hurt",Rika says "I know but he shouldn't have shouted at y-",she gets cut off by a little wolf's whimpering and crying as Rika looks in a bush to reveal a little girl with purple wolf ears and a tail as she squeaks. "Don't hurt me!",she says trembling as Rika picks her up out of the bush setting her on the floor as she sits there looking up at Cecelia and Rika standing up. "Please you have to stop my pack,they want to fight Bakugou's pack!",she says sniffling as Rika was shocked as Cecelia pats the little girl on the head and she giggles a bit her tail wagging like crazy. "I dont want my big brother to fight anymore,he's been through so much fights and I'm scared he might die in this one,he's the only family I have left after mommy and daddy were killed by hunters.",Yumi says crying now as Rika and Cecelia felt bad. "Hey don't worry little one,we'll stop them what's your name?",Rika asks "Y...Yumi",She says as Cecelia smiles "That's a beautiful name Yumi,and dont worry we'll stop them for sure",this makes "promise??",Yumi says as Cecelia and Rika nod.

However,just then a distant wolf howl could be heard as Rika and Cecelia's eyes widen. "What was that?",Rika says as Yumi whimpers "They're planning on charging blindly into battle!",she says with growing fear in her eyes as Shinso's pack was on the move,unknowingly to Cecelia and Rika that darkness was set and corrupted into their hearts by foes all to familiar to them both as for within the shadows near Cecelia and Rika,stood several figures in black coated hoods ready to strike.