Hey guys, thank you so, so much for following my story! I just finished watching Your Lie in April, so now that I've cried literal buckets, I'm ready to write!

I don't own Big Hero 6, any content taken directly from there film isn't mine (obviously).

Enjoy!

Chapter 1: Baymax

Tadashi sat up from where he'd been lounging on his bed when there was a thunk and Hiro let out an exclamation of pain, peering past the rice-paper wall that separated what Hiro referred to as his "nerd cave" from the rest of the room.

A beep sounded and the next thing he knew, Baymax was inflating over him.

Baymax. You were here all this time, huh? I forgot that I took you home, Buddy.

Baymax looked down, and then towards the head of the bed—right into Tadashi's face—and for a moment he was sure that Baymax could somehow sense him.

His sensor? Can he tell I'm here? He has a thermal camera, am I coming up as a cold spot or something?

But the moment ended quickly, and Baymax turned his head toward the opposite wall. He moved from behind the bed and squeezed between the end of the bed and the dresser, knocking over books in the process.

Dang it, I know Hiro won't pick those back up.

Baymax waddled over to stop in front of Hiro.

He gave a little wave. "Hell, I am Baymax. Your Personal Healthcare Companion."

Hiro stared at him for a moment. "Uh—hey, Bay-Baymax. I didn't know you were still . . . active."

"I heard a sound of: distress. What seems to be the trouble?"

"Oh I just stubbed my toe a little. I'm fine."

"On a scale of one to ten, how would you rate your pain?"

"Ze-zero? I'm okay really. Thanks. You can shrink now," Hiro assured, holding up his hands in a placating gesture.

"Does it hurt if I: touch it?" Baymax asked as he leaned down, one chubby finger outstretched.

Tadashi figured he should probably help Hiro.

Maybe I programed Baymax a little too well.

He tried to hold Baymax back—which in hindsight was a bit of a poor attempt to remedy the situation—by grabbing his shoulder and putting himself between Hiro and the well-meaning robot.

It's fine Buddy, Hiro's not really hurt.

His hand brushed the access port—or not so much his hand, but what he'd equate with his hand if he still had a corporeal form—and yanked it back with a gasp.

What was that?

It had felt like a shock. It hadn't hurt, it just felt odd. And left him feeling all tingly.

I wonder . . .

Tadashi had heard of cases where spirits affected or even took over technology. Being a man of science he hadn't much believed in them, but . . . here he was. Whatever he was.

He didn't want to possess Baymax though. Baymax was supposed to help people, that's what he was designed for. If he possessed Baymax he didn't know what would happen to the Healthcare Companion programming, he might end up short-circuiting the system.

But I wrote his programming. And if I could talk to Hiro directly, just for a few minutes . . .

I have to try.

He'd written Baymax's programming, so if he could just insert himself into it. . .

He laid his hand once more over the access port, and this time ignoring the tingling even as it became unpleasant, pushed.

By the time Tadashi had reoriented himself, Hiro was pointing a finger at him and telling him not to scan him.

Wait . . .

He's pointing at me—well Baymax—but me! It worked, I can't believe it worked! And I didn't wreck Baymax!

It was like Tadashi could breathe again, when he'd forgotten how to. The constant feeling of almost vertigo was gone. His mind was clear. He felt alive again. And more than anything, he wanted to talk to Hiro.

Hiro! Hiro!

But Hiro just kept talking.

He—he can't hear me . . .

"—hormone and neuro-transmitter levels indicate that you are experiencing mood-swings, common in adolescence."

Oh, has it finally happened? Is my little baby brother finally becoming a man?

"Diagnoses: Puberty."

Uh, Baymax, it was just a joke. Did I make him say that?

"Wow, what? Okay, time to shrink now." Hiro said, retreating to Tadashi's side of the room.

"You should expect: an increase in body hair. Especially on your: face, chest, armpits, and—"

Whoa, Bud. Keep it PG.

"Whoa, thank you! That's enough." Hiro exclaimed at the same moment.

"You may also experience powerful new urges."

I've created a monster . . .

"Okay! Let's get you back into your luggage," Hiro croaked as he pushed his weight against Baymax in a futile attempt to make him deflate.

Hey, don't put me in there too! I'm not done trying to talk to you!

"I cannot deactivate until you say you are satisfied with your care."

Did Baymax just stall for me?

"Fine. I'm satisfied with my—whoa!"

There was a load thump, and Tadashi didn't have to try and make Baymax turn around. He did of his own accord.

Hiro was still lying where he landed, digging around under his bed.

He pulled out his favorite blue hoodie and dove into its pocket, pulling out his hand, balled into a fist.

"My microbot? This doesn't make any sense."

Well, baby brother, you're flowering into manhood, you're gonna be confused. He couldn't help the jab.

"Puberty can be a confusing time for a young man flowering into manhood."

Did . . . did Baymax just copy me?

"The thing's attracted to the other microbots, but that's impossible. They were all destroyed in the fire." Hiro placed the microbot into a petri dish.

Well what if they weren't?

"Dumb thing's broken."

What if it isn't?

Tadashi wanted to examine the microbot further, but how was he supposed to do that? Could be make Baymax get closer?

Easily Baymax leaned over and picked up the dish, focusing his camera on the small robot inside.

Did I do that? Or is Baymax just listening to me? But how?

Tadashi pushed that aside for the moment and studied the microbot.

I knew it. No matter how I turn it, it points in the same direction. Hiro, your microbot's trying to go somewhere!

"Your tiny robot is trying to go somewhere."

That's . . . really creepy. I think I'm talking through Baymax.

"Oh yeah? Maybe you should, ah, figure out where it's trying to go," Hiro answered sarcastically.

Will that help you start living again? Really living?

"Will that stabilize your pubescent mood-swings?"

Close enough.

"Uh-huh. Absolutely."

Fine then, knucklehead. Anything for you.

Trying to figure out how to maneuvering Baymax's body was not fun. It wasn't so much maneuver it as get Baymax to go where he wanted to without getting them both—did they count as a both?—run over. He's been able to convince Baymax to follow whatever direction the microbot pointed without much difficulty. But seeing as Baymax had no grasp of how much damage a truck could do to his own body—only to a human's—he didn't try to avoid the oncoming traffic.

So when he found a trolley, he told Baymax to get on.

He was aware of Hiro following them through the busy streets and back alleys until they finally came to a stop before an old warehouse in the industrial part of the city.

"Baymax! Are you crazy? What are you doing?" Hiro gasped between breathes; hand on his knees as he caught his breath.

I found where you microbot was trying to go.

"I have found where you tiny robot wants to go."

"I told you, it's broken, it's not trying to go . . ." Hiro's words halted as he took the petri dish from Baymax's hands and stared down at it.

That's right, look at it a bit closer knucklehead.

Hiro tried the padlock on the door.

There's a window.

"There is a window."

Geez, you're gunna hurt yourself. Don't step on Baymax's face like that! He's a Healthcare bot, not a stepladder.

"Please be careful. A fall from this height could lead to bodily harm."

Hiro pulled himself through the window, and Tadashi told Baymax to do the same.

He, of course, got stuck.

"Please wait a moment while I let out some air."

Is it possible for a ghost to get second-hand embarrassment?

Hiro pulled them through once Baymax was done. Baymax then had to then re-inflate.

Hiro don't run off! It's dangerous!

But Hiro was already gone.

They caught up to his brother quickly . . . and proceeded to scare the living daylights out of him.

"You gave me a heart attack!"

"My hands are equipped with defibrillators. Clear."

I should have worked on his speech processing more . . .

After Hiro managed to convince Baymax that he wasn't actually in need of resuscitation, he took the microbot from his pocket. It clattered chaotically against its container.

Walls of microbots rose from the bins behind Hiro.

Ah, crap

"Oh, no."

Run!"

So tell me what you thought! I am writing this as a bit of experience to see if I'd do well in a creative writing class, so I really enjoy the feedback.

As for how the Baymax/Tadashi thing, think of it as a symbiotic relationship. Baymax is still perfectly functional, and in control when Tadashi isn't telling/asking him to do things. Tadashi uses the healthcare chip as a way to tie himself to Baymax, and by default, to Hiro.

How Tadashi talks through Baymax will be explained next chapter.

As time goes on and Tadashi gets used to being a part of Baymax, it'll be easier for him to act through him.