San Fransokyo Institute of Technology has been ruined by Yokai. Everyone's protected and safe.
Agent is looking around everyone, including Tadashi, Baymax, Fred, Hiro, Honey, Gogo, and Wasabi. She found several clues for everyone inside of this college. All the papers and inventions that were messed up by Yokai are going to wait until everything's clear.
"Okay, everyone, listen up very carefully." Agent called. "A masked villain came in here to make this mess into disaster. One of your inventions might be messed up. If you have a robot that you've invented, please take that home with you. You don't want your robot left behind while we're investigating. If you have inventions that are not messed up, you can take that home and work on it. Clean up everywhere so that way we can look over this university while it's all clean. We're going to shut down this place for investigation."
Everyone, excluding Hiro, is cleaning up the mess. Hiro is holding his heart. Hiro started to sweep up Tadashi's area that has knocked down.
"What have happened?" Wasabi asked.
"I don't know." Hiro said. "I-I think Professor Callaghan is trying to trick people in this college."
Hiro and Fred are sweeping Tadashi's area, Honey is sweeping the main area, Wasabi and Gogo are washing the walls, and Fred is scrubbing the floor.
A guy came in from the bathroom. "What a mess!" He claimed. "What happened in here?"
"We have a supervillain attack in this university." Agent answered. "He came in for chemistry attack. A young man was hit by one of them, so I don't even know who got hit by that, but what kind of chemistry is that, ma'am?"
"It's called turning-into-color chemistry method."
"That's right! It was blue. Blue. Whoever got hit by a blue turning-into-color chemistry method is bound to turn itself blue. Who will it be?"
"So, what do you want me to do?"
"Just help someone clean up this mess, as best as you can. We're going to close down this university for the investigation."
The clean-up is halfway done.
"No one ever explained that was the result." Hiro said. "The news might come at any minute over the television."
At Lucky Cat Cafe, Cass Hamada is wiping the tables. Her television is on.
"Yokai has arrived at San Fransokyo Institute of Technology, and messed up one area of science inventions. He stole one of the chemistry inventions from a female superhero, and developed to hit the blue turning-into-color one at the male superhero. Which one of them is going to be blue? Let's find out! Also, San Fransokyo Institute of Technology is currently under cleaning session, and as soon as the whole place is cleaned up, the university will be closing down for investigation out from this disaster."
"What happened, Cass?"
"My nephews were there." Cass said. "A supervillain from this town is invading their college? I could never see that happening around my life."
"Which superhero is going to turn fully blue?"
"I don't even know."
"We'll find out on the next news."
"Where are your nephews?" A guest asked. "When they'll be back?"
"My nephews are cleaning up their college now." Cass answered. "They'll be back as soon as that place is cleaned up. They're closing their college for investigation.
"Where's my chocolate donuts and regular coffee?" Another guest asked.
"Hang on for like a minute. I'll be with you as soon as I get this table washed up."
Back to college, the whole place is cleaned up, but Hiro is still sweeping his brother's floor.
"Here!" Hiro said. "All set!"
"Okay, all people in San Fransokyo Institute of Technology, you must leave the building now. We're going to close up this college for investigation, and we'll reopen the college as soon as the investigation is over."
All people at this university are leaving the place. Tadashi brings Baymax with him and Hiro.
"I must have to see my parents before they find- HOLY MOTHER OF MEGAZON! They're on a vacay again!" Fred yelped.
"Your parents are gone again?" Wasabi asked.
"It looks like we all have to go home by ourselves."
"Come on, Hiro!" Tadashi called, hopping on his scooter.
"I'm ready, Tadashi!" Hiro said.
Later, the whole place is empty, except for a guy from a bathroom and Agent.
"Who is the guy that is about to turn blue in a moment?" A guy asked.
"That'll be a nephew to the owner of Lucky Cat Cafe." Agent answered.
"Wait a minute. Who's the owner of Lucky Cat Cafe?"
"Cass Hamada is the owner of Lucky Cat Cafe. She only has two nephews. The older one is Tadashi, and the younger one is Hiro."
"Well, who's going to turn blue? Will it be the younger nephew of Cass or the older one?"
"I believe that it'll be the younger one." She answered. "The news reporter claims that a superhero is about to change his whole entire body blue."
"When's Hiro Hamada turning blue in?"
"According to what the method says, if it is into a human, that'll be about at least four hours."
"Yikes! I don't want him to be like that!"
"Well, unfortunately, the robots that one of the students here created have to be with them so they won't leave them unattended. The older nephew of Cass created Baymax. He doesn't want him unattended while we're investigating."
"What are we going to do with him in four hours?"
"Um...just another word, you might have to say that he needs a proper treatment before serious things will happen."