Hello, everyone! This is a new story! I hope everyone will enjoy it and without further ago, let's start!

Normal POV

A few years ago, a blue haired baby boy was born into the world. His mother, Shizuka Sendou, and his father, Yosuke Sendou, welcomed the baby boy with joyful expressions. The baby was then named Aichi Sendou. He was a healthy and normal baby boy, at least, that was what the two thought he was. However, when he was two months old, an event happened that changed their lives.

" I'm home, Shizu-chan." Yosuke greeted

He then heard Aichi's wailing coming from the living room as he made his way over. When he entered the living room, he was shocked to see Shizuka lying on the ground while Aichi was being carried by a skeletal like figure and was wailing loudly.

" Shizu-chan! ... Who are you?! Let my son go!" Yosuke shouted

" I am..." The figure started

Suddenly, a flash of light blinded the room as Yosuke shielded his eyes. Once the light dissipated, the skeletal figure was replaced by a man as Aichi had stopped wailing and fell back asleep when the man placed his hand on his forehead.

" There we go. Glad you've calmed down. Looks like I made it in time." The man said

" You..." Yosuke exclaimed

" Hm? Oh, you don't need to be alarmed. I'm not that bonehead. He's been temporarily sent back to where he came from. He won't be coming back for long." The man said

The man approached Yosuke and handed Aichi back to him.

" Who are you?" Yosuke ask

" My name doesn't matter at this point of time. I'm just here to settle that bonehead." The man said

" Why was he trying to kidnap my son?" Yosuke ask

" ... The reason is very complicated. But with time, it'll become clear. For now, let me just leave him a parting gift and lucky charm." The man said

The man then took out a small chain with a pouch hanging on it and handed it to Yosuke before taking out a metal bracelet with a crystal four leaf clover in the center of it. He then locked it around Aichi's too small wrist as the bracelet shrunk to his wrist size.

" There we go. This bracelet will ward off that thing for now until he fully awakens to his hidden potential." The man said

" What do you mean?" Yosuke ask

" Your son is not just a normal human. Don't worry. I'll have someone watch over him. Someone with great potential to train him. Although this might not be your taste but I'm calling a mafia for help. If you want your son to be safe, then don't get in the way." The man said

" ... Then this pouch?" Yosuke ask

" ... Treat it as a disguise of sorts. After all, I'm covering a truth within a lie. Even if he wears it now, others won't see it. One more thing, he might need people for help so hand him these once he is of age. See you." The man said, tossing a black box towards Yosuke before disppearing

Yosuke opened the box as he saw seven crystal rings inside it.

" Mafia..." Yosuke muttered

Yosuke then opened the pouch to see a rainbow pacifier as he blinked.

" A pacifier?" Yosuke muttered

He then snapped out of his thoughts as he carefully placed Aichi in his crib while hiding all the items he was given. Once Shizuka woke up, she had no recollection of what had happened as their normal lives continued on.

A few years later, in present time... Aichi, who was now in elementary school, was walking back home from school after having been bullied but while walking, he suddenly bumped into a brown haired boy who apologized right after recovering from the fall. The boy then approached him as he looked up at him.

" What happened to you? Did you lose a fight or something? But you don't seem like the fighting type. Did you get bullied?" The boy ask

Aichi stayed silent as he looked up at the boy. It was then he started seeing a bright yellow flame shining behind the boy as he blinked and the flame quickly disappeared. The boy then thought about something and rummaged through his pocket before taking out a deck.

" You wanna try this? It's fun." The boy suggested

Time passed as the boy explained the rules of the game to him and it soon became evening.

" So these fifty cards together make up a Vanguard deck. Let's do this!" The boy said

" A-Already?" Aichi ask

" You learn better by doing!" The boy said, nodding

The streetlights soon turned on, indicating that it was soon going to hit the late evening as Aichi looked at it before turning back to the boy.

" Come on! There's nothing to be afraid of." The boy chided

" I n-need to get home soon..." Aichi said

" Is it that late already?" The boy muttered

Aichi got up and started to leave as the boy quickly stopped him and handed him a card.

" You can keep this one. He's a pretty strong swordsman." The boy said

Aichi let out a silent sigh as he soon felt a hard slap on his back before wincing.

" Come on! Just imagine it! Imagine yourself being as strong as him." The boy said

" I c-can't!" Aichi exclaimed, a light blush dusting his cheeks

" Guess it's hard to do off the bat." The boy laughed, " But once you can picture that, I bet you'll be able to change. Imagination will become your strength."

For the first time, Aichi's eyes shone brightly with light as he started making his way home after waving goodbye to the boy and stared at the card given to him.

" Blaster Blade..." Aichi muttered

He soon reached his house as he opened the door and entered the house to remove his shoes.

" I'm home..." Aichi greeted, putting on his slippers

" You're home later than usual today, Aichi." Yosuke said, coming down the stairs

" I'm sorry, Papa." Aichi said

" It's fine. Come here, I'll treat those wounds before you have to eat dinner. Shizu-chan! I'm bringing Aichi upstairs!" Yosuke shouted

" Okay! Make sure he showers too! And, help me check on Emi to make sure she doesn't oversleep before dinner!" Shizuke shouted from the kitchen

" Got it!"

Yosuke brought Aichi to the bathroom and allowed him to shower as he woke Emi up and helped her down to the living room before going back up the stairs after hearing Aichi's room door closing. He then knocked on his door and entered his room. Taking out a first aid kit, he started treating the wounds cause by the bullying Aichi had to face in school.

" Are you sure you don't want me to talk to your school about those kids bullying you?" Yosuke ask

" No, I'm fine..." Aichi replied

" I kind of wish you aren't this nice, Aichi. The nicer you are, the more those kids would bully you. But that's what makes you so special, Aichi." Yosuke sighed

" ... But I met a new boy today... We accidentally bumped into each other and then he was kind enough to help me up snd teach me how to play a game." Aichi said

" Really? What game?" Yosuke ask

" It's called Vanguard... Then, he gave me this card. He told me to imagine becoming a warrior stronger than him..." Aichi said, taking out Blaster Blade from his shirt pocket

" I see. That was really kind of him. He might've been your first ever friend." Yosuke said

" I wouldn't say that we're really friends yet but it felt like it too... He was shining so brightly like those yellow flames I saw on him... A warm and bright light." Aichi said

" ... What did you say?" Yosuke ask

" Huh?"

" You saw flames on him?" Yosuke ask

" Yeah... but it disappeared after awhile." Aichi replied

" I see..." Yosuke said

" Papa?"

" It's nothing, Aichi. We'll talk after dinner. Let's not keep Mama and Emi waiting." Yosuke said

" Okay."

The Sendou family started eating their dinner while Yosuke had continued talking during their dinnertime as Aichi helped Shizuka clean the dishes before going to his room.

" Yosu-chan, doesn't Aichi seem happier today? Did you say something to him upstairs?" Shizuka ask

" No. Looks like our son finally decided to open up to someone he met today." Yosuke replied

" That's great! I would love to meet his friend one day." Shizuka said

" Me too."

Yosuke then thought back to his conversation with Aichi in his room as he contacted someone before heading up to Aichi's room and knocked on the door. Once he had the permission to enter, he closed the door behind him and saw Aichi staring at Blaster Blade again.

" You really like that card, don't you?" Yosuke ask

" I'm trying to imagine it like he said... But it's not working out very well..." Aichi replied

" ... Then why don't you make a deck? That way, you can imagine something even more. Like, a warrior leading the fray into battle." Yosuke said

" But..."

" I'll spoil you this time. You've always refused to allow me to spoil you with things you love. But looks like I know what you want the most now." Yosuke said, patting Aichi's head

" ... Thank you, Papa." Aichi said, smiling

" One more thing... I'm arranging for someone to train you from today on." Yosuke said

" Train?"

" Take it as self defense lessons. It's important for you. I can't be there to protect you but I know you'll be safe if you know some moves to protect yourself. The person tutoring you will come tomorrow. Don't be afraid, okay?" Yosuke ask

" ... Okay."

" Don't worry, Aichi. You're going to be as strong as this warrior, aren't you?" Yosuke ask

" Yeah."

Yosuke nodded as he then looked at the bracelet on Aichi's wrist.

" Good. You still have this on." Yosuke said

" You gave it to me when I was a baby after all. I wouldn't remove it. Still... it always fills like no matter how much I grow, it stills fits me like a glove." Aichi said

" Yeah."

Yosuke then took out the chain neclace with the pouch as he tied the chain necklace around Aichi's neck.

" This is...?" Aichi ask

" Don't ever remove this either. When the tutor comes tomorrow, you'll know why. Think of it as another present from me." Yosuke said

" But the other children will..." Aichi said

" They won't see it. Trust me." Yosuke said

" Okay..."

Yosuke kissed Aichi on his forehead before tucking him to bed, went outside and closed the door once Aichi was asleep. He then picked up a call.

" Hello? ... I know that I can trust you with my son after all these years of you protecting him. I know you haven't done anything yet but I appreciate your help... I'll be leaving for my overseas work and I won't be seeing him very soon so I wanted to leave some parting gifts. I trust you. Take care of my family for me once I'm gone. I know you have your own mafia job in your hands soon... I know. I thank you once again... Good night."

Yosuke hung the call up and sighed.

" I hope everything goes well for you, Aichi... Papa only wishes for your best." Yosuke muttered

Another few years passed after that as Aichi was now in middle school and studying in Hitsue after transferring from Miyaji Elementary. However, his shy personality was still there when he transferred so there was still minor bullying involved. Today, he had to answer to a history question by Mr Mark but flunked it and embarrased himself as he sat back down and covered his red blushing face with his textbook.

" I blew it... But with such great military leaders around, I never would've anything of note." Aichi thought

He then remembered something as he took out his student handbook and opened it. He then took out his Blaster Blade card and looked at it.

" Blaster Blade... Even in the Warring States Period, you would've been..." Aichi thought, imagining Blaster Blade fighting before grinning widely

He then kept the card back in his handbook, however, that didn't go unnoticed by his classmate, Katsumi Morikawa. Right after school, Morikawa brought Aichi to the back of the school while his two other friends kept a lookout.

" Wh-What do you want, Morikawa-kun?" Aichi ask nervously

" Aichi Sendou... I didn't know you were a Cardfighter." Morikawa said

" M-Me, a Cardfighter?" Aichi ask

" Don't play dumb. You were holding a Vanguard card, right?" Morikawa ask

" Yes, b-but I've never played against anyone. I'm not a Cardfighter." Aichi replied

" Just a lowly soldier, huh? Anyway, show me that card." Morikawa pointed out

Aichi quickly tried to protect the card in his pocket but Morikawa was faster as he grabbed his wrist and took out his handbook with his other hand. He then opened it and took out Blaster Blade. Aichi tried to stop him from taking the card but was pushed away as he fell to the ground.

" You're not a Cardfighter, remember? It's a shame that this card's gone unused. But now it's im good hands." Morikawa said

The three started to walk away again as Aichi got up and grabbed Morikawa's jacket.

" G-Give it back. That card... is mine." Aichi muttered

Morikawa glared at him and started beating him up as his two friends quickly stopped him.

" I'm gonna get revenge for yesterday. Let's go to Card Capital." Morikawa said

The three then continued their way to Card Capital, leaving Aichi to lie on the floor.

" Card Capital..."

Aichi slowly got up after that as he gripped his chest and leaned against the wall.

" Blaster Blade..."

Aichi started walking along the path Morikawa and the others took while still holding onto things for support. As he went past the walkway, he finally arrived at Card Capital as he panted to regain his breath while the grip on his chest loosened as he entered the shop.

" M-My card... Give me back my card!" Aichi shouted

" Who's he?" A yellow haired boy wondered

" M-Morikawa-kun... Please! That card means a lot to me!" Aichi begged

" Like I care!" Morikawa said

" Is this your card?" A brown haired boy ask, showing Blaster Blade

" Th-That's right! That's mine! P-Please give it back to me!" Aichi exclaimed

Both high school boys looked at each other before turning back to Aichi.

" Why should I?" The brown haired boy ask

" Huh?"

" He fought with this card on the line and lost. To us Cardfighters, the results of a fight means everything. It's settled. The card belongs to him. A card that's been taken away can only be regained through a fight." The brown haired boy said

" Then, w-will you fight me?" Aichi ask

" Wh-What are you talking about?! You've never done a Cardfight!" Morikawa exclaimed

" I've never done one before, but I put together a deck because I wanted to have a Cardfight someday." Aichi said, taking out his deck

" Say what?!" Morikawa exclaimed

" Fine. I'll fight you. Come over here." The brown haired boy said, walking towards a table and taking his seat

" O-Okay!"

" What the heck, Kai?! That's my card!" The yellow haired boy exclaimed

" Fine, let me borrow it." The boy, identified as Kai, said

" Hey, wait! He said this was his first Cardfight! Why refuse to fight me, but agree to fight this beginner?!" Morikawa ask

" In your last fight, were you challenging Miwa seriously? This guy is serious in trying to get that card back. I have no reason to refuse someone who challenges me to a serious fight." Kai explained

Morikawa grew frustrated and ran out of the shop as his two friends ran after him.

" So, let's get started." Kai said

" R-Right..."

Aichi looked over to Kai when he sat down as he soon saw a purple flame burning behind Kai, but it wasn't really as fierce as he thought it would be. Instead, it was a cool and calm flame that flickers to show that it hides inner emotions.

" What a beautiful flame..." Aichi thought

" But first..." Kai said, sliding Blaster Blade across the table

" That's my card!" Miwa exclaimed

" Pipe down. You need Blaster Blade to complete your deck, don't you?" Kai ask

" Y-Yes."

" You can borrow it, then. It'd just be a handicap for me." Kai said

" Th-Thank you!"

Aichi took Blaster Blade back as he looked at it and smiled. He then added it to his deck and placed it on the table while Kai did the same.

" I'm Toshiki Kai. And you?" Kai ask

" I-I'm Aichi Sendou." Aichi greeted

" You seem to be a beginner, so I'll explain the rules as we play. Now, imagine it." Kai said

Aichi closed his eyes as he soon opened his eyes in an empty space and started falling. Once he opened his eyes again, they were face to face on a vast land.

" Right now we're on the planet Cray in spirit form, as astral bodies." Kai explained

" Wow..."

" Our bodies are weak, but we have two abilities. The first is 'Call'." Kai continued

" Call?"

" Monsters inhabit this planet. We have the ability to summon them as units. But the monsters we can summon are ones we have contract with. As in, only the ones we've gathered to complete a 50-card deck. There can be up to four of a same card in a deck. But I'm sure you know that, if you put a deck together." Kai said

Aichi nodded.

" Our second ability is 'Ride'." Kai continued

" Ride..."

" This is the ability to possess a summoned unit with your astral body. And once you've possessed a unit... it's called the Vanguard." Kai explained

" Vanguard..."

" It means 'one who leads'. As astral bodies, the first units we possess can only be grade 0 units. Start by choosing a grade 0 from your deck and laying it face down here." Kai explained as he placed his first Vanguard in the center circle

Aichi followed suit and did the same actions as Kai continued.

" This card is your first Vanguard. Once that card is turned over, it becomes none other than you. You yourself become the Vanguard, leading the monsters you have contract with in battle. After shuffling your deck, place it here and draw five cards for your hand. At this point, you can redraw any cards in your hand. Do you need to?" Kai ask

" N-No..."

" Then we're ready. Once the first Vanguard is turned over, the game begins. Ready?!" Kai ask

" Y-Yes!"

" Stand up, Vanguard!"

" Stand up the Vanguard!"

They flipped their first Vanguards up and the fight begun...

And that's the end of this first chapter! This idea had been inspired by KaisakiTokura, who'd PM'ed me about the idea of recreating the V series of my first KHR crossover story, The Rainbow Arcobaleno! The title might be the same but the story overall will be a little different, so I hope everyone will enjoy the story! Thank you for reading and I'll see everyone in the next chapter!