A/N: I always write super quickly, but your reviews and favorites made me upload it! I hope you enjoy this chapter. There are more to come!

"Well, you two were out late the night before the big day."

Both the Hamada brothers stopped at the sound of Aunt Cass's voice.

"Hey, Aunt Cass!" Tadashi said, turning around to her. "We were just taking a tour of Hiro's soon to be lab again! He wanted to see it… you know, again."

Aunt Cass seemed to believe him, up until she looked at Hiro. "Oh my god, honey! Have you been crying?"

"What? No!" Hiro said. "I was just, uh, sneezing before I came up here!"

"Are you sure? Oh, Hiro of you're nervous about the presentation tomorrow, you can talk to us about it."

"Uh, no. I'm just tired. I'll see you tomorrow, Aunt Cass."

The older woman looked disappointed, but didn't say anything as Hiro grabbed his brother and pulled him the stairs and to their room. Hiro put Baymax on charge before sitting on his bed. He put his head in his hands, all of the sudden very worried about the next day.

"Hiro, are you okay?" Tadashi said. "You tensed up when Aunt Cass mentioned the presentation. Does something bad happen tomorrow?"

Hiro took a shaky breath. "Yeah, yeah it does."

"What is it?" Tadashi asked, leaning in front of his brother.

"You…" Hiro stopped himself, making sure this the right decision to make. "You died that night, Tadashi. There was a fire … and it was all because of my micro bots."

Tadashi leaned back with this information. He stood, and paced around the room for a second, before stopping. "Wait, what do you mean that it was all because of your microbots?"

"Prof- no, someone wanted them for revenge." Hiro said. He knew that if he told Tadashi about Callaghan now, he wouldn't believe him. "So, they started the fire, and the building exploded while you were inside. I don't want to relive that night."

Tadashi was silent for a moment, before he came and sat down next to his brother. "Look, I know you're worried about this. But tomorrow night is your chance to get in to college, and start something! Don't you still want to go?"

"I got in last year." Hiro said. "And it took me awhile, but I did go. I just… I don't want to take the chance of you dying again."

Tadashi put an arm around his little brother. "We'll get through this. Together. I promise I won't leave you this time."

Hiro leaned into Tadashi. "Thanks, Tadashi."

All in all, things went smoothly for Hiro at his presentation. He was much less nervous the second time around, and he managed to duck out of the way before Krei could get to him.

After he received his acceptance letter, and watched Callaghan disappear, he snuck back into the presentation room. Most everyone had left. This time around, Hiro knew that if the fire started, no one would be in danger.

"Hiro, what are you doing?" His brother said, following him.

"Someone is going to steal my micro bots, and I'm making sure that they don't do it." Hiro said, with gritted teeth. He found his neural transmitter, and smashed it on the floor. "I can't destroy them all, but I can destroy this."

"Good." Tadashi said, grabbing his arm. "Aunt Cass is waiting by the car, let's get out of here before we get-"

"What are you two doing in here?!" A male voice said.

"Caught…" Tadashi finished, turning to see whoever it was. "Oh! Professor Callaghan! What are you doing in here?"

Hiro could see the man's eyes gaze at the broken neural transmitter. "Nothing, I suppose. But, I guess I should ask why you broke your invention, Hiro."

Hiro glanced down at the neural transmitter, and up at the man, trying to keep his composure. "Oh, we were just fighting, and it happened to fall. Tadashi here wanted to use it."

"Oh." Callaghan said, and he walked over to pick it up. Hiro tried to stop him, but Tadashi grabbed him, looking at him confused. "It's not actually broken, just a severed wire."

"Yeah, well maybe I should fix it. Since it's, you know, mine."

"Ah, no I can do it." Callaghan said, and he reconnected the wire. "See."

"Thanks, Callaghan. Now, if you don't mind, Hiro is really protective over his inventions…" Tadashi said.

"Well, with an invention like this. I would be too." Callaghan said, and he looked at the transmitter for a second, before putting it on.

"No!" Hiro said. "Take that off!"

"Hiro," Callaghan said, and his face turned into the sneer that Hiro had seen before. "You have served your purpose to me."

The micro bots rose, and Hiro grabbed a confused Tadashi and ran for it.

"You can't escape me!" Callaghan yelled, sending the micro bots after them.

"Wha- what is he doing?" Tadashi said, running though the room with his brother.

"He's the one who set the fire, Tadashi! He's trying to kill us!"

"What?" Tadashi yelled.

Callaghan was using the micro bots to block the exits, they noticed, and Hiro had to think of a way to get them out.

"I will avenge Abigail's death, and you will not stop me!" Callaghan yelled.

Before Hiro could tell him that Abigail was alive, and they could save her, Callahan used a nearby chemical to start the fire.

While Callaghan brought the micro bots to shield himself, Tadashi pulled his brother through an exit. They ran as fast as they could, before the whole thing exploded, and Hiro had that familiar ring in his ears.

It was stupid. Tadashi had gotten them out; Hiro had seen him running down the steps with him, but laying there, on the pavement, Hiro remembered the night that had haunted him for a year, and he screamed as if he were back there.

"Tadashi!" He yelled, at the beginning, trying to get up. "Tadashi, where are you!?"

When no one came, Hiro began sobbing. This was what happened last time. He called, and called for his brother, but no one came. Tadashi was gone.

"Hiro!"

The boy looked up, and found his brother running towards him. Hiro's sobbing intensified as relief spread through him. When Tadashi reached him, he enveloped him in a hug.

"I'm okay, Hiro. I'm okay."

"I thought you died again. I thought I lost you!" Hiro said.

"Hey, Hiro." Tadashi said. "I'm not going anywhere. It's okay."

"No, it's not!" Hiro said, pulling away. "We need to get Honey, Gogo, Fred, Wasabi, and Baymax. We can all take down Callaghan!"

"W-what? Hiro, this is a job for the police."

"No! I tried last time! They didn't believe me! Tadashi, come on! I did this before!"

"We'll talk about this later, Hiro." Tadashi said, his eyes trained on the crowd. Hiro followed his gaze, only to see Aunt Cass running up to them.

"Tadashi! Hiro! You're both okay!" Aunt Cass said, hugging them both. "Oh, imagine if you had been in there!"

"Yeah, I don't want to." Hiro said, wiping away stray tears. Red lights finally appeared at fire engines arrived on the scene. Firefighters began trying to control the scene, while the Hamada family was pulled away, gently asked questions about the fire.

"I do not understand." Baymax was saying. "I thought Professor Callaghan was arrested."

"He was." Hiro said. "But that was in a different timeline. You see, we've been sent back a year, and I think we're supposed to do things differently this time. That's why Tadashi is alive."

"I have noticed an increase in positive neural transmitter hormones. Tadashi being alive must play a part."

"You've got it, dude." Hiro said. "But, none of the team knows where we are, and we still have to catch Tadashi up on everything we know. Still got that karate training, Baymax?"

"Yes, the secondary chip is fully functional."

"Good." Hiro said. "We've got a lot of work to-"

Hiro was cut off by an abrupt, and violent yawn. He blinked afterword's, trying to remember when the last time he slept was.

"The last time you got a full cycle of REM sleep was before we were sent here, Hiro. I recommend sleeping tonight."

"No, Baymax. I have a lot to do." Hiro said.

"But you will be compromised on your tasks if you do not sleep. Why not go home for a little while and rest?"

Hiro sighed. Since the fire, he had been working non-stop, getting the designs for the team ready.

Meanwhile, everyone had come to congratulate him about his acceptance letter, and while Hiro was ready to tell them, Tadashi held him back for some reason. Hiro did guess that he needed more evidence about his time travel before he confronted them.

"I need to work, Baymax. I basically have to reprogram them entire team. Plus, I have to get them to believe me!"

"But that is not more important than your health. My only concern is you, my patient." Baymax said, and Hiro looked up from the computer screen. The last time Baymax had been pushed to saying that was when they were rescuing Abigail, and Hiro was forced to leave him behind. Hearing those words reminded him of the event, the event that he had never actually healed from.

"Y-you're right Baymax." Hiro said, and he shut his computer off. "I'll get some sleep."

"It is past midnight here, and I do not have my suit to fly you home. Will you be able to get home safely?"

"Nah, I'll just crash here." Hiro said, standing up. He walked over to the couch and laid down, but since he didn't have a blanket, it was not the warmest thing ever. "Thanks, Baymax."

Baymax wound up being the boy's blanket that night, and Hiro slept a good ten hours on his marshmallow friend. The next morning, Tadashi showed up, worried about his little brother, but was shocked to find him on top of Baymax, asleep in his heated arms.

Instead of being a jerk and waking him up, Tadashi left with a smile.