Doctor Gero was not having a good day. First - project B.U.U died as an embryo, setting back months of progress. Second - project C.L.L., C.L.R and project F.Z.A were not adapting well to the programming, having fully absorbed the offencive and defensive program but only a fraction of the subservience program. Third - he was currently being attacked by heroes.

Usually the third problem was fixed before it could even begin, one of the benefits of working for All-for-one. Unfortunately, he had recently been caught attempting to obtain some of the man's DNA which was taken surprisingly well considering how most others would have reacted. He still had his limbs, he was still working for him and he even still had funding. The only minor issue was that All-for-one was no longer giving him protection from heroes. That meant if he got caught, no one was coming for him.

In cruder words, he was fucked. Not only was there multiple heroes barging in his base, one of them were the number one and number two heroes All-might and Endeavour.

That combined with the fact that All-for-one had taken his first functioning nomu a few days ago was what had led to him running for his life towards the partially programmed bio-androids. He knew that if he could just reach it, he could kill off one of his boss' biggest annoyances and possibly get back in his good graces while staying out of jail.

He reached the entrance, slamming his fist on the lockdown button and watched the titanium door slam shut as he took a breather. After he caught his breath, he strode over to his workstation and pressed a few levers.

The nanomachines disguised as a liquid split apart and re-entered the machine with a resounding hiss, generating steam and releasing his creations. The first to exit was his latest creation, project C.L.L. It was his pride and joy, for it was the first of its kind to be able to successfully acclimate to having more than five quirks.

Next came project C.L.R, closely followed by project F.Z.A. For a few gleeful moments, the three bio-androids stood tall… followed by them flailing their arms as they hit the ground. Motor work apparently, was not something that came instantly to them.

"Stand up you bumbling fools!" If his creations were this useless in a battle, the only use they'd make is a meat shield. After all, heroes didn't like to hurt children. Well, in public anyway. He had seen at least one photo on the dark web of the Todoroki family.

"Now, I am your master and outside that door are some heroes. Your mission is to incapacitate or kill them and bring them back to me, preferably intact." Gero's pride and joy scowled for a second before smirking.

"No." D-Did he just hear that correctly? Where was the 'yes master's and robotic tone of voice? The subservience code should have- ah. Right. He had almost forgotten they were faulty. In fact, he couldn't even ask All-for-one for help with these nomu's as some of their quirks were very powerful and they were quirks that All-for-one most definitely did not know he had.

But fine. If they were going to be that way, he would just have to use the remote. Project C.L.L cried out as it dropped to its knees. The other two immediately jumped to its defence, kicking him on his torso and knocking him down. How dare it! Project C.L.R even had the audacity to place its feet on his head as though he were the lesser being!

"Found it!" the smallest of his creations searched through his pocket to find his failsafe. It was an unassuming little metal box with a few buttons and levers. "Now, what does this do?" If Gero was anything other than a scientist, he was a coward. They may have been his creations, but they had no reservations in killing him.

"I-Its a remote that connects to your earring which sends false signals to your insula and a-anterior cingulate cortex." F.Z.A and C.L.R both blinked, neither comprehending any of what he just said. "What?"

Gero sighed. Truly, he knew he hadn't spent much time on programming much information into them that wasn't fighting, but surely they weren't this stupid? "When I press that button, it connects with your earrings which can make all three of you feel pain." F.Z.A made noises of understanding before smirking, sending chills down his spine.

"Are you going to kill me?" The tallest of the three scoffed. "No, we're going to listen to your commands and kill the people behind the door-of course we are!" As Cooler's foot raced towards his head, the last thing Gero saw was a blinking camera falling into a foggy portal in the corner of his field of vision.

All Might ran through the corridor, closely followed by Eraserhead. The two had been chasing Gero through the underground laboratory, the man speeding through the compact space swiftly with his physical enhancing suit. The sound of his fellow heroes fighting the defence bots faded as they ran further into the laboratory. They turned a corner just in time to see a door slam shut and hear the sound of mechanical locks click.

"Damn it! If only we were just a bit faster!" Eraserhead scowled. He had been practically useless the whole time. The reason he was even here with All Might was because he could erase quirks, but since Gero had been just out of sight the whole time, he had been no help at all! The underground hero scowled as he inspected the door. All Might could technically destroy the door, but they didn't know what was behind it or what it was made of. If there was any information on Gero's allies or there was anyone behind the door when All Might punched it, it or they would get completely crushed.

All MIght, getting worried from the unusual noises he could hear faintly coming from inside impulsively punched the biometric finger lock . While Eraserhead flinched, concerned that it may have been trapped and they would be attacked, All Might stared in slight confusion as the door slid open. How… How did that work? The two heroes then focused on the sight in front of them… and froze.

In front of them was the horrifying sight of Gero, dead on the ground with three children, two of which were covered in gore and the third hunched over on the floor. The tallest of the three had a black undercut with white hair slicked back and a blue stripe in the middle. His piercing red eyes stared at them. The smallest had the same eyes and had the same black undercut but with a head of purple hair. The one being helped up looked the most different, with a full head of dark green hair and pastel pink irises instead of the crimson ones the other two adopted. All three of them wore white shorts and shirts as well as a gold pair of earrings each. None of them could be over ten.

The shortest was the only one who hadn't noticed the heroes standing in the doorway and walked towards the one on the floor before noticing the tallest's inaction. "What are you looking a- oh. Oh."

All three of them tensed up before entering fighting stances and leaping towards All Might, having deemed him to be the largest threat. Not surprising considering how tall and muscular the man was. Too bad for them, Aizawa could erase quirks. The moment he activated his quirk, the boys faltered. Somehow they had realised it was him who did it and charged towards him. Despite his quirk still being on, the children still were incredibly fast, managing to close the gap between them in a second.

"Eraserhead-san!" All Might grabbed the three children, grabbing them by the arms to stop them from attacking recklessly. In response to that, the green one snarled and attempted to bite the hero's hand. All Might reacted as calmly as one would expect.

"Ow!" The number one hero instinctively flung the boy away and blew on his hand which now had a bleeding bite mark. How strong was this kid's jaws?

"The boy landed on his feet, lunging towards All Might before going limp and falling to the floor with a thud. "What the-" All Might looked down at the other two children in his hands who had also lost consciousness.

"Oh dear." All Might looked at Eraserhead. "Is that bad?"