The bell goes off so you and Kirishima run into the arena as fast as you can and get separated in the process
"Great! First I'm basically quirkless, I get separated from my brother and then I get separated from my friend!! GRRR!" You growl angrily as you throw a rock for it bounce off of a robot
"Crap" you whisper before quickly running away
'Is there anything that can break it?' You question as you observe your surroundings to see a rickety building
"THAT!" You scream as you rush through resulting in the robot barreling through and taking the building down after you make a quick escape
"Wooo!" You scream as you run to touch the mass of junk then flop to the ground and celebrate by resting a bit
"Alright up up! We don't need you to be killed!" Tenya Iida exclaims as he pulls you up in a rush then runs off
"W-Was that Iida?" You question yourself in surprise as screams break out
"Run it's the big one!" Someone shouts as he runs past you so you run forward, not giving much thought to it
"Ochako!" You scream amidst the chaos as you take sight of the girl, she looks up from the rubble where she is stuck and in an instant even if the robot was incoming you ran to Ochako
"W-Who are you? How do you know my first name?" Ochako questions as you try to lift to stone with no avail
"AAHH THE BOT!" You scream as it gets closer so in swift movements you throw your arms out and chains erupt from your body to your and Ochako's shock and Izuku lands his punch on the tech that was stilled by your chains
"Midoriya!" Ochako exclaims as she touches the stone and you help her up on it so as soon as Izuku's panicked and screaming form nearly touches the dirt she slaps him (she meant to not hit him so hard) and uses her quirk to make him float for a second but drops him seconds after to vomit
"Rainbow?" You question, surprised by the color of her vomit before you double over from pain that shoots from all over your body
"Is she bleeding?" Someone questions as you tap the pained areas gingerly to see blood
"Ok ok let me through" Recovery girl says as she cuts through the crowds and her eyes meets yours curiously
"I take it as you over did it" she says curiously
"I don't know" you respond earning a nod
"I'll bandage you up after I heal Mr Midoriya. Those wounds don't look too bad but I still wouldn't leave them unwrapped" Recovery girl informs you
"Whoa Tetsutetsu! Are you ok!?" Kirishima yells as he runs to you and gently grabs you and examines your wounds
"My quirk hurt me, I think I over did it" you report to him making Izuku awaken for a minute
"Yeah it was awesome there were chains all over the robot which kept it in place so I could-" Izuku passes back out before he could finish
"R-Really?" You question as you look around to see that there are chains scattered all over the place, most of them are broken from the robot exploding but you are amazed at the fact that you could produce so many chains
"Miss Tetsutetsu your wounds were probably caused by a deficiency in iron because your medical records tell me that you need to eat a lot meals with iron for you to create so many chains without injury" Recovery girl explains making you sigh in realization
"I didn't eat breakfast today"
"Ahh don't skip anymore meals Miss Tetsutetsu" Recovery girl tells her so she nods
"Alright everyone who doesn't need treatment go ahead and head out anyone else wait patiently and I get to you" Recovery girl announces as she smiles to everyone so Kirishima looks at you and gives you a nod
"You're strong I hope we'll be in class together" Kirishima expresses with a grin that makes your heart flutter
"Yeah same" you grin back
"C'mon Miss Tetsutetsu time to fix you up"
"Ok!"

A/N: I hope that this worked pretty well and wasn't too abrupt or anything but soon I will be deciding what class you are in :3 but now an explanation of 'Chains'!

Chains is a quirk in which the user materializes chains from his or her body, chains can be a really strong quirk especially when backed up by the genetics of another quirk that has standing within the metal family but Chains can be dangerous if the user does not have a proper amount of iron (meats) in their diet and it can cause injury, there is almost no bounds with Chains so if you train it can trap a villain, form a wall to shield from bullets or even make a bridge momentarily.

THANKS FOR READING! :D