Author's note: Hello everyone! I'm back and with a brand new story, one that I had in mind for a long while now. And you guys could tell by reading it! This is a Winx Club and Kamen Rider Build crossover I come up with.

Now you all probably asking, why Winx Club? Well believe it or not. Winx Club is also one of my childhood favorite shows and if it weren't for Winx Club I would had never heard of My Little Pony in the first place. How did that worked I'll explain in future chapters.

But why crossing over with Kamen Rider Build? Because I find Build one of the best Kamen Rider series I had ever watched (I know there are some flaws in the near end of the series) But I respect that Tokusatsu had gone through a lot of hardship to make it special along with future plans like Zi-O and beyond. So Build is still one of my favorite Riders in my book.

Anyways I'll give you guys more details about this story as we go further beyond. Just to side note, there will be a lot of OC's in this fanfiction so I hope you guys would grow on them. Anyways, let's begin the experiment!

Disclaimer: I don't own Kamen Rider and Winx Club, I only own the OC's and all rights belong to Rainbow S.R.L and Tokusatsu.

Warning: This chapter contains blood and bloodshed, reader's discretion is advised.

On a rainy day, a family of four, a father and mother with their sixteen year old son and their fifth teen year old daughter were walking through the streets on a rainy day as they all wear raincoats. The father wears a blue raincoat while the mother wears a light green raincoat, while their two children wear matching yellow raincoats. The parents held up two umbrellas above their heads for both themselves and their children.

The parents were just walking their two children home from school since their house was only about a few minute walk from the school. As they were walking through the streets, the daughter noticed a man sitting out in the rain in an alleyway as they just walked past by it.

"Mom, I saw a man out in the rain on that alleyway." The daughter said.

"He's probably just enjoying a rain shower." The mother said casually.

"But mom, he appears to be out cold, he could get sick if he's out in the rain for too long." The daughter stated, sounding quite concern for the man.

"Maddy, he could tell when it's time to come back indoors." The father said, revealing his daughter's mane and sounding suspicious about the man.

But Maddy turned her head back to the alleyway "I'm gonna go in there, just to make sure that he's okay." Maddy said as she run back to the alleyway.

"Maddy! Don't do anything stupid!" The brother called out as he followed his sister.

The parents looked worried as well as they too followed their children. Upon going to the alley, they saw an unforgettable sight.

Like what Maddy said, there was a man sitting on the ground outside the rain, the man is actually appears to be the same age as their son, or slightly older. Wearing only a white long sleeve button shirt, black trousers and black derby shoes and was unconscious.

The parents now realized that their daughter was telling the truth and had mixed looks at the young man.

The brother then walked up to his sister "Sis, what do you think you're doing?" he asked.

Maddy then slowly approached to the unconscious teen and without warning, the man groans loudly as he slowly moves his head.

The daughter flinched and slightly backed up along with her family as they realized that the boy was waking up. The boy then raised his right hand to rub on the tempo of his head as his eyes slowly opened up, once he's fully wake up, the teenage boy had an utterly lost looked as he views his surroundings.

Once the young boy saw the family, he then spoke "W…Where…Where am I?...Who…am I?" he said in a confused voice.

The four looked at the young man with mixed emotions from concern, confused and pity.

Maddy then kneel down and looked at the young man in the eye "You…don't remember who you are?" she young man responds with a shook of his head.

Then her brother approached "Not even a name?" he ask and again, the teen shook in negative.

"No…nothing." The boy said in confusion and a bit of hopelessness.

The parents exchange looks from each other "Dear, we can't just leave him alone in the rain like this." The mother said.

The father nodded in respond "Good point, it's too dangerous for him to be out here, especially with an amnesia like that." He said as he then walked toward the young man "Hey listen…" the father said.

The young teen looked up at the father who's standing next to his children from the left.

"Tell you what; we'll let you in our home. We have an extra bedroom just in case for guests, you'll be welcome to stay there until we could find out who you are." The father said as he reached his hand to the young boy "Until then, you'll welcome to stay with us."

The boy still looked confused and lost, but he slowly reached out his hand and grabs the father's hand as the latter pull the former back up to his feet.

"Dad, are you sure that this is a good idea? You know we can't trust strangers." The son said with seriousness.

"Son, if this young man truly lost his memories, than he can't do any harm to us. Plus, what would you do if you're in the same shoes as his?" The father said to his son.

The elder son thought about his father's words and it had a valid point, this amnesiac stranger needs help since he had no place to go or return to, plus he'll be all alone and isolated.

To conclude, the son nodded in understanding "You're right dad, he probably needs our help." He said.

The father smiles a little of his son's maturity before looking back at the stranger "Now, let's go home." He said.

The young stranger nodded slowly as the family walked him back home as they use their umbrella to cover him from the rain.

A few months later, the family slowly, but clearly are warmed up to the young stranger. Given him a room to stay, sharing their breakfast, lunch and dinner with him, even taking him up to their cottage up in the woods in some occasions.

The father's name is William Unterman. He's an American citizen with blond hair and blue eyes, a red Hawaiian shirt with images of a Hawaiian beach with a red sunset background, beige trousers tied by a brown leather belt with a silver round buckle and black brogue shoes.

The mother's name is Nita Unterman, she's a Japanese descendant as she had a shoulder length black hair, brown eyes and Caucasian skin. She wears a blue silk shirt, a long black skirt, a gold thin bracelet on her right wrist and black high heels.

Their eldest son name is Richard Unterman, he had short black hair, brown eyes with black glasses, wearing a navy polo shirt with brown shorts, white socks and white sneakers.

Their youngest daughter, as we all know as Maddie had long blond hair tied in a ponytail with blue eyes, wearing a black tank top, a blue demine skirt and dark brown loafers.

The come up with a current given name for him Joseph Scott as Joseph is the name after the Williams great grandfather, Joseph Hagar Unterman, while Scott is named after Nita's childhood crush Scott Steinberg.

As time passes, the family tried to hand out fliers and call people who might recognized Joseph, but so far so little luck as everyone the family had talk to had did not recognized the young man whatsoever. Joseph felt despair and hopelessness, fearing that he might never know who he really was, or if he really does have a family; the family felt sympathy for him and finally decided to adopt him, welcoming him as a part of the family.

Joseph then felt happiness again, relief that he had a place to call home and people he could call family. He may never know his past, but he at least he'll forge his new future.

The siblings even showed Joseph their favorite TV shows, Maddie showed him an Italian animated television series, Winx Club which was her childhood favorite series. At first he thought it was some girly fairytale TV show involving girls transforming into fairies in magical girl style, but it starting to grow on him as he's started to watch the first season, in fact he finds some of its storylines are quite interesting. Currently there are seven seasons, but from what Maddie said, there's going to be an eight season near around 2018.

Then Richard introduce him a show that he's more interested in, a Japanese live action franchise called Kamen Rider, a series involving mask armored superheroes riding on motorcycles and fighting the forces of evil. Currently a Kamen Rider series called Ex-aid was nearly ended and he had to admit that it was an interesting series. Richard even requested him to watch some of the older series like Kuuga, Blade, Kiva, OOO's and many more and Joseph was hooked up to most of them.

(Time skip to one year later)

Then one year later, on the day that he thought was supposedly the happiest day of his life, his birthday (Which is the day that he was found by the Unterman's.) Joseph and his adopted family were driving on the streets on a rainy day to a local plaza to celebrate the day.

"Joseph! You're exited for your birthday celebration?" Nita asked Joseph.

Joseph smiles warmly "Sure I am, I mean this might be the first birthday I could remember in my whole life." He said cheerfully.

"Well, let's make it as memorable as possible!" William said as he was driving the car.

Then Richard turned to look at Joseph "Hey Joseph, I heard there's a new Rider coming after Ex-aid, he's called Kamen Rider Build and his series will appear on Sunday this week!" The elderly son said as he showed Joseph the image of the said Rider on his phone.

Joseph takes a close look on the image and was a little baffled at the design, especially the eyes, since the left eye is an image of a red rabbit head and the right eye is a blue tank. "Well, this is quite bizarre, not as wacky as Ex-aid's design, still quite unique." Joseph commented.

"Well either way, I hoped that this series is just as good as or even better than Ex-aid." Richard said with glee.

Maddy sighs as her eyes rolled "You guys only interested in fighting and explosions, Joseph have you even started to watch Winx Club?" she asked her adopted brother.

Joseph chuckle "Of course I've watched it and like you said, guys can enjoy the show too. In fact, I've just done watching Season 4, once we get back home. Then I'm watching Magical Kingdom and Season 5 and onwards." He responded reassuringly.

"Well, season 5 to 7 isn't as great as the older ones; it's just nostalgic for me to watch it again. But it feels like the series just gone downhill with newer seasons coming; nonetheless the story is still good in my opinion." Maddy stated.

Joseph shrugged "Either way season 1 to 3 were the best for me, season 4 is still good, but it could have been better." He commented.

As everyone were chatting. William was listening to his family's conversation and couldn't helped but to feel joyful of how happy his family is, but when he turned his attention back to the road, his eyes suddenly widened and the car out of control. Everyone was startled at his sudden act.

But in mere seconds, Joseph was able to get a small brief glimpse on what William saw on the road in the back seat, he saw a red figure standing on the road. But before he could get a better description of the figure, the car had crashed and darkness takes over.

...

...

...

Moments after the accident, Joseph's eyes slowly opened as he regains his consciousness, he began to wondered how long he was blacked out, but as soon as he gain enough sense of awareness, he had witness something that will haunt him for all eternity.

The people that he loved and cherish the most are…dead. William's head struck hard on the steering wheel, Nita's head was bashed onto the window and Richard's neck seems to be dislocated as he was lying half on the floor of the car, all three of them are now covered in blood from their fatal injury.

Joseph could only stare in shocked and horror as he tries to process everything; he first placed his hand on William's right shoulder and shakes him, hopping that he's somewhat alive "Mr. William! Wake up!" He called out, but no respond.

He then turned his attention to Nita "Ms. Nita! Please! Say Something!" He cried out, but no response from her either.

In desperation, Joseph looked at Richard and shakes him by the shoulder "Richard! Come on! Stay with me man!" He yell out, but Richard's whole body seemed lifeless as Joseph sakes him.

Depression is kicking in as Joseph began to feel pain and heartache. But before he sheds any tears, he remembered one person; he turned to his right side and saw Maddy who appears to have the least amount of injuries on her.

Desperately, he placed both hands on her shoulders and began to shake her "Maddy! Please! Talk to me! You can't go away too! "He pleaded with all his heart.

Just as he was brought into despair, he heard something that might bring a glimmer of hope. He saw Maddy groaned and her head moved in response as she regains her consciousness; finally she fully opened her eyes and saw Joseph right in front of her.

Joseph couldn't help but to brought out his biggest smile and was relief that he wasn't the only survivor. "Maddy! You're awake!" He said in utter relief.

"Joseph? Wha…What happened?" she asked in confusion.

Her respond caused Joseph to frown again as he didn't answered her and lowered his head down in grief.

Maddy was slightly confused at Joseph's act, but upon looking at the scene before her, her only respond was…"AAAAAAAGGGGGGGGHHHHHHHHH!"

Time skip to several weeks later

After the accident, Maddy's uncle Robert Unterman was kind enough to take her and Joseph to his home in the city of Toronto in Canada to live with him and his daughter, Camile Unterman. Both their lives were never the same again after that very day. Joseph was still haunted on that day, but it was nothing compared to Maddy's as her mind was completely broken after the incident.

2 weeks had passed, Joseph walked up to Maddy's room. He knocked on the door of her room and said "Maddy! It's dinner time!" But there was no response from her; he tries to knock the door again, but still no response. "You can't stay like this forever Maddy! Please, Mom, Dad and Richard wouldn't want you to be like this!" Joseph calls out, hopping to reason with her.

"JUST EAT WITHOUT ME!" Maddy said loudly, enough to hear her shaken and broken voice.

Joseph sighs in frustration before saying "We'll leave some food in the fridge if you get hungry!" He said before making his way down stairs and headed to the dining room where he met up with Maddy's uncle and cousin, Mr Robert and Camile.

Mr Robert was a few years younger than his brother William, he had a brunette hair and blue eyes, wearing black sports glass. He also wore a white polo shirt and brown trousers tied by a black belt and black derby shoes.

His daughter Camile who is sitting right next to him, she had a darker brown shoulder length hair with a red hair pin on her head with teal eyes with lighter tone skin, she wears a long knee length white frilly dress with a blue jacket over it, white stocking socks along with black loafers.

"Still a no?" Robert said with worry.

Joseph nodded solemnly "Yeah, she's literally traumatized; this kind of behavior isn't good for her." He stated.

Camile nodded in agreement "He's right dad! It's been 2 weeks now! If this keeps up, who knows what's going on in her mind!" she said, sounding quite concern for her cousin.

Robert thought about it before saying "Alright! We'll give her some space for now, but tonight will be the last time! If tomorrow won't be any different! Then we definitely need to do something about it!" he concluded "Let's just have dinner and enjoy it for now." Robert said as he, his daughter and Joseph sat on the table and start their dinner.

After dinner, Joseph headed to his room where he lied down on his bed and relive those very memories when it all happened, his will was strong enough to look past that, if only that's the same for Maddy. It still feels like it was just yesterday that accident had happened, he never would have thought that the day he thought was supposedly his happiest day had turned into a nightmare.

But then as he rewinds back seconds before the crash, he remembered that he caught a small glimpse of a red figure on the road. He thought hard, trying his best to make out the figure, but failed. Then more thoughts came to his mind.

'Why do I feel like that car crash wasn't some random freak accident? Why do I feel like that…that red figure I saw had to do with all of this?' he thought in his mind 'Wait, now that I think about it. Why do I feel like I've seen that red figure before?' he thought as he rolls along the side of his bed. Joseph then shrug his shoulders 'Maybe I'm over thinking all of this, it might be just some loner who's wearing a red rain coat and was spooked out to see the car crash.' He thought in his mind.

Suddenly Joseph gasped as he remembers Richard's last request. "The show, Kamen Rider Build!" Joseph thought in his mind before getting up on his bed "Richard never got the chance to watch it!" he said to himself as he got up from his bed and gets his laptop. He then sat down back on his bed and opens his laptop, Joseph then looks at the time on the clock hanging on the wall in front of him.

"Hm… 9 o'clock, the night's still young. Watching one or two episodes won't hurt." Joseph said as he begin to turn his laptop on and enters his password. "He may not be here to watch the new show, but the least thing I could do is to continue to watch Kamen Rider, so that way I could remember all the great times I had with him." Joseph said before he found the video of the series and begins to watch it.

One hour later.

An hour had passed by and Joseph had watched a couple of episodes or so before he felt sleepy "Man! Those two episodes are already intense! I got a feeling that it'll be a great series!" He said to himself as he puts his laptop on to his desk and turned on the lamp on his nightstand; he then walked towards the switch and turned off the lights before heading to bed.

Once he lied down on his bed, trying to get a goodnight sleep and have a peaceful dream. But little did he know that this dream is anything but peaceful.

And we will stop here ladies and gentleman. For some of you didn't noticed, I just combine the previous Chapter 1 and 2 into one whole chapter, while I'm decided to change Chapter 3 into Chapter 2, I did this because some of you think that making short chapters would make this fanfic more like a slice of life than an epic childhood crossover.

Plus some of you guys complain that I shouldn't have make the chapters too short and let the build up and pace of the story too long and slow. I thought about it for a while and I see that you guys are right! So I combine Chapter 1 and 2 into a single chapter while I'll try to extend Chapter 3 to make it more interesting for you guys.

HOWEVER I WILL EXPLAIN A LOT MORE DETAILS AND EXPLANATIONS ON THE NEXT MODIFIED CHAPTER.

Remember to comment, review and stayed tuned to the next chapter where I give out more info about this story.

See You!