Disclaimer: Hunter x Hunter characters & places belong to Yoshihiro Togashi (hopefully I spelled the name right) and My Hero Academia characters & places belong to Kohei Horikoshi (I'm bad at names, please tell me if I spelled either of those wrong). Some plot elements may be taken from MHA, but the story itself belongs to MarkTwainTwo (hi!).

Note: Comments / reviews give me serious motivation. TY SO MUCH to those who reviewed! Love you guys & your ideas!

Another Note: I just realized that since Killua's a transmuter, he could realistically transmute the air in his lungs back into breathable air (not CO2), so he would actually never have to come up for air when swimming or whatever. Obviously, this would require concentration so he wouldn't do it all the time... but still.

Killua

"Ugh!"

He plopped down backwards on the floor, where he was seated in front of a newly-stolen laptop. He was in an old, simple hotel room he'd been able to afford with money from his first three fights (all of which he'd won before four in the morning). Despite being on the fourth floor in a not exactly soundproof building, and despite slamming into the floor in mock-despair, however, his movement made no noise.

Killua was trying to register for the UA Entrance Exam- key word trying. All kinds of paperwork was needed, and he was so bored spending all this time making a fake identity for himself. It wasn't like he hadn't done so before on his own world, but here it was a hundred times more tedious. Apparently, they actually cared about little things like what age you were, who your parents were, and if you were alive.

He stared at the ceiling. As of six that morning, his parents were both dead and he was in the care of an aunt named Biscuit, whose "Quirk" was the ability to produce rocks out of nowhere.

He was also fifteen.

Weirdly, that would probably be the hardest part to fake. He didn't exactly look old enough to be fifteen. Even short fifteen-year-olds looked older. And his eyes were the opposite- he'd been told, and he could see it in the mirror, that his eyes looked too dark or sad or wise or grown up for his age. He'd had plenty of experience pretending his parents were normal (or dead), or pretending he was a different ethnicity or even gender. But age? He'd never really had to change his age before. On his world, age wasn't a concern.

He groaned again, then swung his legs up and over his shoulder, doing a half-roll, half-jump into a standing position. Instead of getting things done, he would go out and get chocolate.

Not for procrastination reasons, obviously.

He was just... making sure he wasn't working on an empty stomach. Yeah.

Shota Aizawa

"What the actual hell is this," he demanded, voice flat and exhausted but eyes blazing.

He was staring at the headless body of a villain who had proved elusive for the past year and a half, and who was growing stronger in the underground: Re-Destro.

The man was laying facedown- well, chestdown, since he no longer had a face -next to his phone, which was open but displaying a "Battery Low" symbol and text. From this, the large but stationary puddle of blood, and the rigor mortis the body was in, the police had deduced that Re-Destro had been dead several hours. The head was nowhere to be found, so the killer had probably taken it with them. There were any number of reasons for that- trophy, evidence, etc. -so no one jumped to conclusions in that regard, but they all seemed to take for granted that the killer was a man with decades of experience.

Except for Shota.

As soon as he heard about it, his mind flashed to the boy from the last night, the one who'd practically announced his intention to kill Kurogiri.

The thing that didn't match up was that this was not, in fact, Kurogiri, nor did he have a warp or portal Quirk. At first, Shota had questioned his instinct to believe it was Hunter because of this. Why would he come to that conclusion? Re-Destro had nothing to do with Kurogiri.

But the way that there was literally no trace of DNA or other evidence to point to the killer... and Hunter's shadows and bloodlust... and how Hunter had mentioned a murder "list", which indicated multiple murders... perhaps the kid had some sort of vendetta against Re-Destro? Maybe the Stress-Quirk villain had contributed to the situation Hunter was in. Shota believed that at least part of what Hunter had told him last night was true, which meant that the kid probably wasn't where he belonged.

Next to him, one of the policemen shifted nervously. He'd already been briefed on the situation, so the man knew Eraserhead's question was mostly rhetorical, but the pro hero was obviously ticked off and the policeman thought it would be best to offer any possibly new information. "Well... we think the head was removed with something very sharp, sir... or a very efficient Quirk. If it was a blade, it was something way sharper than your average knife. So we think it's got to be a Quirk, only we can't figure out what Quirk allows the user to do that... nobody in our records... has..." he trailed off as the pro hero stepped forward, practically kneeling in the puddle of blood to get a closer look at the severed neck.

Shota examined the stump where the head should be, trying not to be grossed out at the pus and blood and multicolored, wilted skin. It was a weirdly clean cut, which would usually indicate a Quirk. But if he was right and it was Hunter... the boy hadn't displayed any Quirk like that. The best he could figure was something to do with shadows, because of his obscured face-

His obscured face.

He stood up abruptly, startling the policeman behind him. "What about cameras? Did you get anything on video?"

The room was suddenly so silent you could hear crickets chirping.

Shota facepalmed.

So apparently, they hadn't checked the cameras because most villains take out the cameras first thing and there's nothing to check. He gave them a lecture (honestly, adults could be problem children too).

Then the sheepish police found the building's security system ("What do you mean, you found it, shouldn't you have already known where it was?" "Sorry, sir, Eraserhead sir!") and after much too much time for Shota's liking, they found the footage.

The footage that very much existed, he reminded them, to which they quickly excused themselves to go "take another look at the body". The police chief, who had arrived in the middle of Shota's lecture, stayed though. He and Shota shared a wry smile at the younger officers' behavior.

"Well, let's see it then," Chief Tsuragamae said, impatient. Shota obligingly rewound the video.

I'm sorry it's so short! I figured it was better to just post this, though, than keep waiting for more inspiration haha...