Author's Note: Hello! Sorry for not updating yet, I just returned to going back to school since break is over and I had no time over the week. Now that I'm back in school I won't be able to update as frequently as I used to but I'll try my best! Well, I don't really have anything else to say so I'm just going to skip to the disclaimer and chapter now :)

Disclaimer: I do not own anything in Big Hero 6!


Chapter 7: Undercover

Tadashi rolled through the dimly lit hallways, it was around midnight and he couldn't really go to sleep. It really bugged him on how his throat itched so he went to the kitchen for some water. After his throat felt refreshed, he decided to wheel back to his room but stopped when he saw the lab room cracked open with a light emitting from the small crack. Tadashi approached the door curiously and peered through the crack.

He almost chuckled but stopped himself when he saw his brother. Hiro was currently knocked out, and drooling on the work bench in front of him. He ducked out of the way when he heard a sound in fear of being caught, and then slowly looked again in surprise to see Hikari walking around.

Hikari took one look at Hiro and sighed, with a small smile. She approached a box near the far corner, and dug something out. The blue eyed girl walked towards Hiro quietly with a pillow and blanket in hand, and gently picked up his baby brother's head, and set it gently on the pillow. She then draped the blanket over his sleeping form, and Tadashi had the feeling that this was pretty much normal for the two. After the girl made sure his baby brother was comfortable, she tried to clean up the area a bit.

Tadashi slowly opened the door, and wheeled himself in as quietly as he could. "Need help?" He asked.

She looked up in surprise then giggled, "Well I doubt you could help me clean in the state you're in." He smiled sheepishly. "But I appreciate the company. Just keep it down, sleeping beauty here needs his beauty sleep." She joked in a hushed tone.

Tadashi smiled, and took note of the drool dripping down Hiro's mouth and incoming snores. "Yeah..." He agreed. So that was one thing that never changed about Hiro, he still drooled and snored in his sleep like a log.

Hikari set a pile of papers in a box nearby the desk and brushed off her hands, "Well, that's the last of it. Why don't we go talk in your room? It's best not to disturb him when he's finally asleep." She whispered.

Tadashi nodded in agreement, briefly giving his baby brother a light kiss on the forehead before he left. Hiro unconsciously smiled, and curled up further into the blankets then went back to soft snoring.

Tadashi smiled softly, and nodded to Hikari as she waited. She rolled his chair to his room and helped him out of his wheelchair and into his bed. "Might as well check your bandages right?" She suggested.

Tadashi nodded once again, and watched as she got out bandages, ointment and a small spray bottle from the cabinet and onto the nightstand beside him. "So," she started, "you wanted to talk about something?" She asked.

Tadashi bit his lip as she gently unraveled the bandage around his left arm, and winced as the flesh came in sight. His left arm had an angry red burn on his upper bicep, it wasn't as bad as his right arm but it still hurt. "I...don't know where to start." He paused, and watched as she threw away the old bandages and lightly dabbed at the wound with a wet towel. "I guess...how Hiro dealt with my death. I know he doesn't tell me everything, and I'm worried about him. I can't help it, I'm his older brother so it's hard not to worry." He chose.

"It's alright, you have a right to worry. You were, and still are a worry wart. I know Hiro keeps stuff from you but he's just uncomfortable. Give him time, and he'll open up sooner or later." Her lips thinned, "As for when you died, well, I wasn't really there in person when you...died. I still lived in South Korwaii but I talked to him via computer often." She set down the towel and dipped her fingers in the ointment. "This will hurt." She warned, and gently spread the ointment over the angry burn.

Tadashi bit his tongue in order to not yelp from the pressure even though he knew she was being as gentle as she could. This had sort of became a normal routine sense she said his burns were so bad. He always had to have the bandages changed in order for it to heal properly.

"...was it really that bad?"

"Yeah..." She sighed. "He...was a little depressed the first month. He barely slept, ate, talked, and rarely went out of his room. He was like a walking zombie according to Aunt Cass." She explained. "But he got a little better once he met Baymax. Then the whole Callaghan fiasco began and he tried to find Kabuki man...to avenge your death and ask why he stole his microbots and why he killed you. After the incident was resolved Hiro registered at SFIT, and started turning back to normal with the occasional mini depression moments. Big Hero 6 was a way for Hiro to get away from all his problems, where he could help people like you wanted to do. Then after a few months, I moved back and helped him over the years to get over your death." She summarized.

Tadashi felt like a bucket of guilt had been dumped on him. He made Hiro experience this...he made Hiro suffer. He was a terrible older brother.

As if Hikari could read his mind she frowned as she wiped her fingers with the rag. "It isn't your fault Tadashi. Hiro understand why you did it now, he's... matured." She assured. "In a good way of course."

Tadashi watched as she lightly sprayed the ointment with the tiny bottle. "Yeah..."

She set the bottle down, and reached for the roll of bandages. "Well, you may not even notice it but ever since you died...a part of you had always stayed with him." She gently wrapped the bandage around his wound. "He's wiser, smarter, and got your sense of selflessness. He turned out to be just like you even though you were dead."

"Really."

He was slightly surprised though. He was honored that the reckless, rebellious brother he knew took after him and couldn't help but feel honored and sad at the same time. He was surprised that Hiro took after him even after being out of the teen's life for three years. He felt sad because he could only frown at all of the experiences and suffering Hiro had to go through.

Tadashi smiled gratefully at her as she finished the last bandage. "Thank you for taking care of him."

"It's my job...he is my best friend." She admitted.

Tadashi felt relieve that Hiro had someone to watch over him and drew his attention over to his bandaged arm. "So how are my burns?"

"They're healing really well, the spray I used is an anti-scarring formula I developed last year. It won't fully go away, it will just end up a little pink than your skin tone if it continues to heal properly." She grabbed the supplies and stuffed them back into the cabinet. "I'll have to take you for a doctors appointment though, I'm not a doctor so it's best to have a second pair of eyes watching your recovery. Are you okay with going in two days?" She asked.

Tadashi's shrugged, and burrowed into his blankets. "You're doing a great job, I don't see why I have to see a doctor. But if you think I should, I'll do it." He answered.

She smiled at him, and squeezed his hand. "Sounds like a plan then, night Tadashi." She said, turning off the lights and quietly closing the door behind her.

Tadashi stared at the dark ceiling, and smiled as he closed his eyes.

He wondered how his Hiro was doing. Was he taking care of himself? Would he get hurt? He knew that from the older version of Hiro, he had gone through a lot. But Hiro had eventually healed from his death. Only this time, he wasn't dead so his little brother wouldn't have to suffer and beat himself over it.

He missed his little brother.

Tadashi sighed, and turned his head on the pillow. But he couldn't go now, Callaghan would only go after him and it would put his baby brother in danger. He would only have to wait until Callaghan was apprehended, then he could reunite with his brother.

The eighteen year old burrowed himself into his blankets, and willed himself to sleep and dream of holding Hiro in a long needed hug.


"This is the place?"

Hiro jumped off of Baymax, and took in his surroundings.

There were currently on an abandoned island, at a ripped up military base or something. The place was desolate, and there were no signs of life. Metal fences surrounded the whole facility, and around the facility was a gigantic forest. Debris was everywhere, and it looked like no one had been here for years.

"Let's go." He said, and started to slowly walk toward the entrance.

"Uh, do you guys see this? Quarantine! There's a reason why there is a big yellow sign on a fence, surrounding this deserted, suspicious looking building!" Wasabi cried frantically.

Gogo rolled her eyes and elbowed Wasabi, "Woman up, Wasabi. It's not like anything is going to attack us-"

Crack.

Hiro immediately fell into a fighting stance with the others, and let out a war cry. Gogo threw her disks, Baymax stood protectively in front of them, Honey Lemon threw her chemical creations in random directions, Fred just jumped up and down and blew fire everywhere, and Wasabi...well, the poor guy was running around like a headless chicken with his plasma lasers waving around.

They all stopped, staring anxiously at the cloud of smoke in their fighting stances, ready to take on whatever challenged them.

The funny thing was...it was just a pigeon.

Hiro mentally groaned, and smacked himself on the forehead. He kept staring at the pigeon, watching as it looked at them, crossed eyed, then flew away merrily as if none of that had happened.

"...this never happened." The others unanimously agreed, and continued their mission.

Hiro frowned in frustration as the metal door wouldn't budge and turned to Wasabi, "Can you slice a doorway through the metal?" He asked.

Wasabi smiled smugly, and activated one plasma laser. "All you need to do is ask." Wasabi began slicing through the metal, in a circular motion but then accidentally pushed it up too early. They all stared at him in question, and he jabbed the metal again, hitting the spot he missed.

"Alright, let's do this." Baymax punched the metal, and it flew back, creating an entrance. Hiro couldn't help but feel excited and anxious. They were like true super heroes, infiltrating bases, saving people, and chasing after villains. If he were younger, he would have given anything to do this. There was one part of him that kept urging him to keep doing it while his other voice of reasons argued the complete opposite. Sometimes, he would flinch when that chastising voice in his head reminded him so much of Tadashi, and immediately tried to push it to the back of his mind. He needed to find out what the Kabuki man wanted with his microbots, more importantly, he needed to ask why he had killed his brother.

"Fred and his friends find an amulet!" Fred sang, while creeping in the dark metal hallways.

Hiro rolled his eyes and couldn't help but smile a bit. Fred was...well, Fred. Even though he didn't do anything scientific he was a great mascot and friend, he also made them laugh and was always there for Hiro. Hiro appreciated the small jokes and relief. He was slightly confused with himself when he wasn't surprised that Fred was rich, like...he actually expected something like that to happen. It was like one of those deception kind of things you saw in a comic book. You think you know your chill, clothes recycling friend that was the school mascot but one minute later, you discover that he's actually rich, has a mansion and doesn't live under a bridge.

It was confusing at first, but Hiro was just glad that Fred wasn't one of those snobby rich kids. Fred was alright with the way he was, well maybe Hiro was a little disturbed about the hippie's habits about laundry. I mean, wasn't that a little too unsanitary?

"The amulet has a gem! The gem is green! It's probably an emerald-"

"Fred?"

"Yeah?"

Gogo turned her head and her eyes narrowed at him as she popped a bubble from inside her helmet. "Sing one more time, and Yokai won't be the only one singing soprano for a week." She threatened.

The three guy's shivered and gulped in fear, unconsciously protecting the area between their legs. Gogo did not joke around, and when she says that she'll do something...Hiro knew she wouldn't hesitate to do it.

"Guys?" They turned to where Honey Lemon stopped by a door. "I think you need to see this."

Hiro walked into the door after Honey Lemon opened it and his eyes widened. On what looked like a testing platform was a wreckage. It looked like two machines...but it was demolished so he couldn't really tell what it would be for. A symbol caught his eye, and his eyes widened to see the same bird insignia on one machine. This place had to have some link, it just had to. The machine Kabuki man pulled out of the water had the same symbol...but what could it mean?

"Woah...what is this?" Wasabi gasped.

Hiro looked toward the glowing red light, and saw that it was from what looked like to be a control room. "Well, only one way to find out." He stated, and went inside.

Now if I were in charge of this, where would I put the main controls? Hiro scanned the controls, and deemed that the main control was by the huge screen. He typed away, and tried to find something, anything. His eyes wandered to a tiny tab and he clicked on it curiously, which revealed to be a video. He clicked play, and all of them stared at the screen intently.

"Krei..." Gogo identified.

True enough, there was Krei. The man was with three other people and was explaining the process of the dimensional portals.

"We haven't tested an actual human being transported, but so far, every single test has remained successful." Krei said proudly, handing back the man his hat. The man led the other three to the control room and stood by one of the operators. "But today, project Silent Sparrow will make history." He announced. He leaned toward the microphone and spoke, "You ready?"

The camera switched to a lady who was in a suit by a pod. She looked familiar...but Hiro couldn't really put his finger on what nagged him about her looks. She light brown hair, tied up and brown eyes. She wore a white uniform, with a helmet on. The lady smiled, and secured herself in her seat. "Well, they came all this way right? Might as well give them a show." She gave a thumbs up.

"Um, sir?" Krei turned to the operator in question, "There seems to be a disturbance in the field, should we keep going?" He asked.

The general shot a wary look at Krei but the man simply plastered on a smile and shrugged it off, "Of course, keep going, no issues here." He cleared his throat. "Launch it now."

The man reluctantly activated the portals, and the pod was launched. Hiro waited in anticipation and stared at the glowing portal, and knew something was about to go wrong. Just as he though that everything was going to go wrong, an alarming beep emitted from the computers and the staff jumped to the controls.

"What's going on?!" The general demanded.

Krei turned to his assistant and looked at the computer, "Sir, we lost signal on the pod, if we don't do anything there's no telling what will happen." The man tried to explain.

Krei looked at the portal with thinned lips, and Hiro felt his stomach drop when he realized Krei was actually debating on shutting the portal. The general scowled, "I thought you said everything was ok! Turn that machine off! Shut it down!" He demanded.

Krei immediately did as he was told, "Shut down the portals!" He shouted through the blaring alarms.

The assistant jumped, and typed away furiously, and a big red button appeared in which he slammed his fist into it. The machine sparked, and it fell apart, leaving debris everywhere.

No pod, no girl, nothing.

The general turned toward Krei in rage, "I want this whole project shut down! This island will be blocked off, with no access and no one to know about this!" He commanded, before putting his hat on and storming out with the other officers who looked at Krei in disappointment.

The video then paused, and it was over.

"So this was project Silent Sparrow..." Honey Lemon said softly. "But what was the Kabuki man doing with the machine?"

Hiro wished he had an answer, and why did the masked villain need his microbots specifically? There were just too many jumbled facts to create a reasonable justification. The Japanese-American snapped out of his daze when a shadow loomed above them, and turned around abruptly to see the guy they were looking for; Kabuki man.

The man was above them, with a alarmingly huge piece of rubble, then made the microbots throw the big slab of concrete at them. The glass shattered everywhere, and Hiro instinctively shielded himself, waiting to be crushed.

"Wha-a-a-a-aaahh! We're going to die!" Wasabi squealed.

"Hiro, are you alright?" Hiro peeked, and released a sigh of relief.

Baymax stood above them, holding the rubble in place that prevented it from crushing them. Hiro patted Bayamx, "Yeah buddy, thanks a lot." He thanked.

Baymax threw the rubble off, and immediately turned to 'Yokai' with his arm extended. But before his fist could be launched, microbots punched Baymax back into the rubble, creating another crater.

"Baymax!" He shouted, and ran toward his robot friend while the others ran into battle. Hiro jumped over the rubble, and set his hand on Baymax's arm. "Are you ok, Baymax?" He asked.

Baymax blinked, "I am a robot, I cannot get hurt." Bayamx rose, and turned toward him. "You are my patient, and my only concern is you." He simply stated.

Hiro frowned, "Baymax, you're not just a robot. You're my best friend, I worry about you." He said. "Now, ready to kick some Yokai butt?" He jumped on Baymax's back.

Baymax stared at him, "I do not understand, would kicking him in the posterior improve your emotional state? It is against my protocol to hurt living life forms. I do not see how kicking him in the posterior will apprehend him."

Hiro laughed, "Just an expression buddy, I'll explain later. But right now, we need to get that mask." He said, and they took off.

Baymax flew around, and Hiro winced as Gogo ran into Honey Lemon, then Fred, and finally Wasabi. While Kabuki man hovered over his friends, he took that opportunity to have Baymax speed toward him, and Hiro whooped in victory when he successfully snatched the mask off of the man's face.

Yokai went tumbling down his tower of microbots, and was thrown toward one of the lower levels of the facility.

"Baymax, after him."

Hiro jumped off of Baymax, and warily approached the man who laid on the ground, his back facing the teen. The man finally turned around from rubbing his head, and Hiro froze when he saw the face.

Callaghan.

But he died in the fire right? He died with his brother, Tadashi went to go and save the professor but they both ended up died. There was a funeral, and a honorary service for the man. But that still didn't explain why the old man was standing in front of him, healthy and alive.

"Professor Callaghan?"

The man looked at him stoically, "Hiro Hamada."

Hiro stood there, frozen in shock. "You...you were dead. You died in the fire!"

The man merely shook his head, "No, I survived." He corrected.

Hiro clutched the mask, "What about Tadashi? Do you know that he ran in to save you?" He demanded.

He could have sworn he saw some guilt but in a flash it was gone and he only saw cold, wise eyes drilling into his soul. "I know." Hiro's eyes widened. Had Callaghan seen Tadashi inside the burning building before it exploded? "But that was his decision, not mine."

Those words were like a slap to the face. They hurt. Tadashi's sacrifice had been for nothing. Callaghan saw Tadashi, but let his brother burn to his death. He saved himself, he left Tadashi to die with no intention to save the older Hamada.

Hiro felt something burn inside him, it was anger. He was angry at Callaghan. His brother could have survived. He could have lived a long life, graduated college, get married, and have kids. But no, Tadashi died for nothing, his brother... Hiro felt himself choke from remembering the explosion. He held back his tears, no, he promised himself that he wouldn't cry.

Hiro clutched the mask, and took shaky breathes in an attempt to control his temper. "You...you killed Tadashi!" He shouted. "You could have saved him, he could have lived!" He spat bitterly, taking a step forward.

Callaghan reeled back in surprise, but Hiro didn't care and kept ranting. "Y-you left him-to burn!" He said accusingly. "What kind of a person are you?! He was your student! He...he wanted to help people!" He choked on an upcoming sob, but pushed the urge away.

Hiro stomped back to his robot, and ignored the worried looks from his friends. "Baymax," he paused, and then glared at Callaghan with hatred, "destroy him." He commanded.

The robot blinked, "That is in violation of my health care protocol-"

"I don't care." Hiro pressed the access port, and yanked the green chip out. He tossed it aside carelessly and slammed his fist against the access port.

Hiro then turned back to Callaghan, who surprisingly had a look of fear in his eyes as Hiro glared at him. All he saw was red, and he felt his hatred and blocked up emotions from Tadashi's death spontaneously explode inside of him.

"Baymax, destroy."


Author's Note: Whew! That was a dramatic scene, sorry about not updating for a whole entire week. I've been busy with school, other activities, and I didn't get a chance to write at all. Hope that chapter made up for it, and I'll try to update the next one soon. Don't forget to review! :)