His real parents

7

"I AM HERE!" Allmight said, speeding into the classroom. Gon giggled quietly, Killua wrapped an arm around him with a slight blush to keep him quiet. Finally. Allmight grinned from the front of the room, Mr. Aizawa standing next to him. "Today for hero course training, you guys have some new teachers to train with" Mr. Aizawa stiffened, obviously not remembering this as part of the schedule. Then, he shot a dark look over at the two boys. "New teachers? Who?" A girl with pink skin and horns said excitedly. Allmight chuckled, then gestured to the front. "They'll be here in a minute" Killua and Gon both bolted to the front so fast that they appeared there in less than a second. "I thought you said you were here to watch and not disrupt class" Mr. Aizawa said darkly.

Killua smirked. "Well, we got permission to teach class today by the number 1 hero. Who are you to refuse that?" Gon snorted. "You only respect authority figures when it suits you" He said dryly. Killua grinned catlike. "Damn right" He cleared his throat. "Now, we're going to ground beta. Everybody pack up and bring your costumes" Killua felt like fixing Izuku's costume but he decided to let him work what he was best in, damn his overbearing sense in fashion was already smothering him. About 5 minutes later and Killua already wanted to change half the class's designs. Actually, make that 85%. Most of the class was kind of skeptical about this, but he and Gon were confident they could teach a class of highschoolers for a single day.

"Alright class, for those of you who don't know my name is Killua and this is Gon. You are to listen to what we say and do it. Just because we're a few months younger than you doesn't mean we aren't professionals" he and Gon both showed their licenses. "Let it be known that we, are not from Japan. Where we come from, these are official and respected by all people." he slipped the license back into his pocket and Gon copied him. "Uhm...Mr...ah...Killua?" Killua snorted. "Just call me Killua, mr. makes me sound old" The yellow haired kid who had spoken nodded. "What is Gon doing?" he blinked, then glanced over his shoulder to see Gon bouncing from rooftop to rooftop. He frowned slightly. "Dumbass? the fuck are you doing?" he shouted.

"Setting up an obstacle course! I wanna see how they do, and then-" Killua caught some shorty with purple hair looking up a girl with a black ponytail's skirt out of the corner of his eye. Killua's eyes went dark and he bolted over, grabbed him, then bolted back up to the front in less than a second as he dangled him by the collar of his shirt. He yelped, and Killua grinned. "Listen here you perverted little shit. Using your size to look up people's skirts will get you bad places." He said darkly. The girls froze, then shot glares at the shorty. "Tell me, what's your name?" He gulped, and Uraraka spoke. "Mineta" He cleared his throat, then threw him vertically upwards about 50 feet into the air. He screamed, loudly, and Killua smirked. "OI MINETA. YOU WANNA EXPLOIT YOUR SIZE? WHY DON'T I DO IT TOO"

A few people looked relieved, others worried, some alarmed, a couple smirked. Killua waited a few moments for him to come back down, then he caught him and held him by the back of the shirt again. Mineta was shivering, terrified. "Now, what did we learn today?" he said, with a smirk. Mineta stuttered a little as he spoke. "N-N-Never look u-up the girls s-skirts a-again" He chuckled, then dropped him on his feet. "Good. And if I do catch that again, I won't mind playing a game of catch with you and Gon" he gulped. "U-Understood" The nodded in satisfaction. "Good. Now, 100 pushups you little shit" He dropped down and started going without question, Killua watched him the entire time. At about 87 he stopped, so Killua snapped and pointed. "13 more" He groaned, then started going again.

The rest of the class was just watching still, having not been given any other instructions. Gon suddenly shouted up from the rooftops. "I'm done!" He grinned, then gave him a thumbs up and grabbed Mineta. "Alright! Line starts there!" he said, chucking Mineta right at him. "AHHH! YOU SAID YOU WOULDN'T UNLESS I DID SOMETHING PERVERTED AGAIN!" He screeched. Killua cackled, and then class 1-A started filing up to the rooftop. Izuku stopped by him with a slight shuffle of his feet, Killua smiled at him. "Hey, need something?" He rubbed the back of his head. "Can I...train with you instead? I mean, if you want to-" He stumbled over his words a little, but Killua chuckled. "Alright, nothing crazy though. Just...why? Why would you choose that when you could be having fun with your friends?" He asked, gesturing up at the others as they made their way along the obstacle course.

He glanced down. "I just...wanted to spend more time with you guys I guess. You've...you've taught me a lot over the past week and I wanted to know more about you. I don't know if I'll ever see you guys a-again" he glanced back up, and Killua saw his eyes water a little. He...really cares about being with us that much? I mean, I guess...he just found out that not only has he never met his real parents, but that there's a whole world he's never seen before. "Alright. Your choice, I can teach you how to use your knife effectively or we can work on hand to hand combat" Izuku's eyes brightened a little. "C-Can I...can I see your quirk? Or Hatsu first?" In the last week, he and Gon kept their Hatsu in the dark for the most part. He'd never seen Izuku use his either, he claimed it was destructive to his own body and he could only really use it in emergencies.

Killua chuckled. "Sure, after I see yours." Izuku gulped, then seemed to concentrate. Killua used Gyo, and his eyes widened. He's...fluctuating his aura nodes, in just a single arm. That's- ah shit- Izuku was about to take a swing when Killua grabbed his shoulder. "Stop" he said urgently. Izuku jumped slightly, then turned it off. "H-Huh?" Killua let out a breath. "I...I know what you're doing wrong" His eyes widened in surprise. "you...do?" He nodded. "Your focusing everything on one limb at a time. Let it flow through your entire body like blood, and just a little bit of it for starters. Your body seems to not be able to handle all the power running through it" something seemed to click in his brain, and he nodded. "R-Right!"

Killua took a step back, then watched. He concentrated again, but this time closed his eyes and breathed deeply just like they did when meditating. He felt a small surge of power, then saw something. Green electricity, sparking around his body. Killua's lips parted slightly. Green...Godspeed. It's green Godspeed. Izuku's eyes opened, and he gasped. "W-Woah!" he moved a little, but it seemed to be difficult. "I'm doing it! I'm doing it!" he said, smiling. "Gon! Come look at this!" He yelled, cupping his hands over his mouth. Gon and a few of the students glanced down, and he saw a few of class 1-A's jaws drop and eyes widen. Gon gasped. "It's green Godspeed!"

Izuku glanced at him. "Godspeed?" Killua chuckled. "Son, you wanted to see my quirk right?" He said, deciding to go by the Japanese term instead of his own. He nodded, eyes shining but not breaking his stance. Killua let electricity come from his fingertips, then shifted it around and let it settle into his palms. "My hatsu is just plain electricity, but I have a few special moves. This one's lightning palms, used for stunning" Izuku's eyes sparkled, then Killua grinned. "Now watch this" He let the electricity run all over his body, activating Godspeed. Izuku's eyes widened, and Killua's hair sparked a little. "This, is Godspeed" He zipped around at half speed, then decided to show off by kicking off buildings to climb them. The entire class was watching now, in awe or amazement.

Gon snickered, then slid off the side a building. Uraraka gasped and reached out a hand to catch him, but Killua went so fast it almost looked like he teleported as he grabbed Gon bridal style and then appeared back over next to Izuku. He let Godspeed fade and dropped Gon, Izuku had let his quirk go as well and was writing furiously in his notebook. He was also mumbling under his breath, and Killua sighed. He's learning so much. But by the end of today, we'll be gone. He glanced down. There's...so much more I want to teach him, do we really have to leave so soon?

1496 words

To be continued...