Author's Note: I had this idea bouncing around in my head for a while, and I finally decided to write it out! This is a story that combines Big Hero 6 with Spirited Away. Chihiro will be replaced with Hiro (their names were so similar that it almost seemed like a no brainer). Anyway, I don't know if anyone's done this crossover yet, but I hope you'll enjoy it!

I don't own Big Hero 6 or Spirited Away.

"You're going bot fighting again, aren't you?" Tadashi Hamada could not believe his ears.

"There's a fight across town," Hiro said with ease, completely ignoring the problem. "If I book, I can stil make it!"

That was it. Grabbing Hiro's hoodie with one hand and turning the boy's head with the other, Tadashi knelt in front of his brother, forcing him to look him in the eye. "When are you going to do something with that big brain of yours?"

"Like what? Go to college like you so people can teach me stuff I already know?"

Well, yeah. That would be nice.

"Unbelievable."

Hiro could do so much with his life. He was a child prodigy who could do complicated math at the age of three. Of course, being the genius that skipped several grades made Hiro a prime target for bullies; so Tadashi understood why Hiro might be a little apprehensive about school. It didn't help that his little brother was short for his age and had little patience for teachers that taught too slowly or too quickly. But San Fransokyo's Institute of Technology could be different. It was primarily self-led, so Hiro would be able to work independently without being slowed down. Of course, Hiro would still have to take the required introductory and lab safety courses, but if Tadashi could just convince Hiro to just try it, Hiro could revolutionize the world.

And Hiro would be happy. Not out illegally gambling on bot fighting for kicks, not constantly complaining about being bored. He needed direction.

Sighing, Tadashi wondered aloud, "What would mom and dad say?" Aunt Cass was and always had been a wonderful guardian, but Tadashi still felt responsible for Hiro. He remembered how often his dad had been there for him, and how protective and loving his mother had been. He had no idea how to be all of that for Hiro.

"I don't know, Tadashi, they died when I was three, remember?" Hiro said, looking like he was talking to the ground.

Tadashi let his hand slide down his face. Okay, maybe he wasn't good at confrontation. Maybe he wasn't good at being the parent. But maybe the tricky smart older sibling would do.

"Hey!" he tossed a helmet towards Hiro, who caught it easily. "I'll take you."

"Really?" Hiro had a healthy amount of distrust.

"Yup." He needed to add a little more to the lie. Tadashi learned a while ago that Hiro rarely doubted you as long as you had a reason. "I can't stop you from going, but I'm not going to let you go alone."

"Sweet!" Hiro said with energy. That was easy.

...

"Where are we going? Bot fight's that way!" Hiro yelled over the sound of the wind whipping past them, gesturing to the missed turn.

"I gotta pick up something!" Tadashi howled back.

Okay, that didn't sound suspicious at all. Hiro tried to get a glance at Tadashi's face. Sure enough, Tadashi was trying to hide a smile. Oh, whatever he was planning, Hiro was going to get him back for it.

Bright lights blurred around them as they sped forward. Once they were up a hill, Hiro could see SFIT (Tadashi's nerd school). The huge campus spread over several blocks. Lights shinned from the windows of labs, dorms, classrooms, and the signs announcing that you were entering the San Fransokyo Institute of Technology.

Why was Tadashi grinning like that?

Hiro decided to wait a few minutes to see if they were going to change directions. Thankfully, Tadashi veered into the far right lane and turned his turn signal on, preparing to turn onto another street. Looking ahead, Hiro saw why. Car after car after car slowed to nearly a stop as a traffic guard conducted them around the road construction. Hiro was glad they avoided that. They would have been stuck in that forever.

They cruised down the road (Tadashi going annoyingly slow, flowing the 25 mph speed limit). After a while, the smooth road transitioned to uneven gravel, the moped bumping up and down in protest. The only good news was that they were apparently not going to SFIT.

"Whew, for a moment there, I though we were going to your nerd school."

"Oh, we are. I just want to avoid that traffic."

Drat.

"Why? Did you leave your microscope and future nobel peace prizes there?"

"Nah, one of the professors is an ex cop, I thought that maybe you'd listen to him if you weren't going to listen to me."

Tadashi turned his head and caught a quick glimpse of Hiro's mounting panic and let out a chuckle. "I'm kidding, knucklehead. I actually do need to pick up some stuff."

Hiro forced out a laugh. "I can't believe I made you think that I fell for that one that easily."

"Whatever, Hiro," Tadashi said, oozing sass. "You should have seen your face."

"Well, clearly something's up, you've been grinning this entire time!"

"Have not!" Tadashi's face suddenly looked serious.

"Whatever, Tadashi," Hiro said, imitating the sass almost perfectly.

"Okay, fine," Tadashi gave in, but he didn't sound like he was done yet. "I guess I've been waiting for a good excuse to take you to see my lab."

"Your nerd lab?" Hiro couldn't help but tease.

"Yeah," Tadashi's voice then changed from a jesting tone to a deep-in-thought one. "I've been working on something for a while, and I think you would love it."

"Is it a robotic butler?"

Tadashi laughed. "No. Well, maybe. But not really."

"Are girls okay with you being this noncommittal?"

"No, I mean," Tadashi paused, leaving Hiro to wonder if his big brother even heard his last question. "This is something new. I don't think many people have tried to make something like this, or at least have tried to make it this way."

Hiro couldn't see Tadashi's face at the moment, but he was sure he was smiling like an idiot. Hiro almost wanted to listen to Tadashi and join his cult of nerds just because of that smile. Hiro was proud of Megabot, but he had never been as proud as Tadashi was now. He wanted that. He still didn't want to go to nerd school, but he wanted that feeling.

Just then a big bump in the road made Hiro bounce in his seat. "Dude! Watch where you're going!"

They were on a rocky path now, going where no moped had ever gone before. The headlights were the only immediate source of light, other than the moon shinning overhead and a strange light in the distance that seemed to somehow be behind a curtain.

"Where the heck are you taking us?" Hiro hollered. In truth, he only just noticed how far from civilization they appeared.

"This road is supposed to let out not too far from school. They told us to take it yesterday."

Hiro looked around at all of the trees. The wind seemed to have picked up. He could swear that he heard whispers. "Well," damn, his voice just cracked. "Clearly you took the wrong turn. I'm sure your nerd professors wouldn't be stupid enough to recommend this road."

"Relax, Hiro, you're much safer in the middle of the woods than at a bot fight."

"Oh, what? No." His voice cracked again. "I just think it's stupid that you took a shortcut that takes more time than the original route."

A particularly large bump made Hiro grab onto Tadashi for dear life. Tadashi let out a superior older brother chuckle. "Hopefully this road will let out soon. It'll be a little adventure."

"Oh great! Glad you succeeded in distracting me from bot fighting!"

"Hey, if that had been my plan, then you could at least compliment me on my originality."

"Yeah right. Just admit that we're lost."

Suddenly a scream mixed in with the wind. Hiro felt Tadashi tense up. Tadashi braked hard and had to swerve to keep from skidding across the ground. Opening his eyes (wait, he closed them?), Hiro saw that they were only a few feet from hitting a long rock that stood maybe three feet tall in the middle of the road. The rest of the wood was pitch black, the rock being the only object that the headlights touched. But as Hiro's eyes readjusted, he could see the strange light again overhead, like the sky was hiding something behind a veil.

"Did you hear that, Hiro?" Tadashi asked frantically.

"Huh?" Hiro said, refocussing on the world around him. "Yeah, I thought I did."

Tadashi looked around, searching every corner of nothingness. "Hold on," he mumbled, fumbling for something in his bag. He pulled out a flashlight and flicked it on, stepping off the moped and moving the beam of light around the wood.

"Tadashi, wait," said Hiro.

"What?" Tadashi asked, looking a little confused.

Hiro stopped for a moment, feeling like a big baby. In truth, he was trying his best to hold it together, and almost panicked when his older brother began moving away. But he knew he was clearly being ridiculous. So he shock his head and tried to remain composed. "Let's not go too far from the road, okay?"

Tadashi nodded, thankfully not teasing him. "We won't unless we have to."

Not really feeling reassured, Hiro followed Tadashi off of the moped. The beam of light revealed nothing but forest and rocky road behind them, but as Tadashi rotated the light around, the light found a small wall of bricks. Moving the beam upwards, the wall turned out to be an entire archway. Hiro couldn't explain it, but he had a feeling that they shouldn't go in there.

Apparently Tadashi didn't feel the same way. He stepped forward, shinning the light ahead and holding his hat on his head against the wind. Hiro resisted the urge to yank him back.

Once they stepped out from under the archway, the wind picked up to almost tsunami porportions, tossing Tadashi's hat off his head and throwing the flashlight to the ground on the other side of the archway.

Hiro couldn't help himself, he wrapped both of his arms around one of his older brother's and locked it in a death grip. He was about to demand and whine until they left until he heard the scream again.

His eyes searched where the sound must have come from, and he gasped. In front of him was an elaborate ... festival? carnival? shopping center? Hiro didn't know. Lights shinned bright from an array of different buildings. Bright beings floated and trotted all around. Some of the beings had twelve legs, some of them had no legs. Some looked like blobs only wearing masks, some appeared to only be masks. Hiro felt like he had just interrupted a five year-old's dream.

What the crap?

He turned to Tadashi to see what he thought. Tadashi faced straight ahead, mouth dangling wide open. His eyes appeared to be double in size as he too took everything in. He turned his head to face Hiro. A look passed between them, but neither seemed to be able to say anything. That is, until the scream began yet again.

Hiro felt Tadashi's arm fly from his grip. His brother flew towards the largest of the buildings.

"Tadashi!" Hiro screamed, begging for his brother to come back.

Tadashi turned around, eyes wide in concern and panic. "Someone has to help. Stay right here."

With that, he turned around and sprinted to the building. Hiro reached and arm out to try to grab him.

It was then that Hiro noticed something that made the nightmare even worse. Hiro could see Tadashi, the buildings, the lights, and even the strange beings through his arm. He was translucent! In panic, he looked at Tadashi. He could see right through his big brother, like he was fading away. Like they were both fading away.

"TADASHI!"

Author's Note: Thank you for reading! Right now I'll be spending most of my time on my other story, Here's to the Brave, but let me know what you think! I hope you enjoyed!