Saving is My Job|| Demon Slayer x Mha!Oc

Chapter 10: Too Much Pain

Sanemi had finished his training and had gone to check on the grey haired female as he was a little annoyed that he hadn't seen her after the 10th lap .
"Where are you,  idiot ?" He grumbles circling the estate only to stop then stare down at the body on the ground .
Thana was , for the lack of better words , asleep or just passed out in the sun as she was currently drenched in sweat . 
His ear twitches at the soft snore that came from her " .....are you serious "his eye twitches before grabbing her collar and yanking her up " You call yourself a hero and you can barely do 50 laps ....honestly " he shakes his head  .
She flinched a bit slowly waking up as she stares at him now with her body going limp. Yea she was ashamed even though she knew it wasn't completely her fault. It doesn't matter what she thinks , a hero is to go above and beyond their limits . She needed to get stronger, even during the morning " ....I'm...sorry ", her voice was so low. Most would think she was possessed, since this was the complete opposite of the confident female from yesterday. 

He stared down at her as his eyes narrow" I don't want to hear a sorry , I want you to finish your laps now get your sorry ass off the ground and run, run like your life depends on it, because in this world it does." He grunts, shaking her before dropping her on her feet as she nods before going back to jogging. 
She sucked in a deep breath as she hardened her resolve and started to push herself while repeating ' Plus Ultra' in her mind as her eyes narrow ignoring the sweat sliding down her face .

Timeskip brought to you by sleeping Kokushibo 

Death. That's what Thana felt like as she slowly finishes her last lap.  She hunches over huffing in silence before straightening up letting out a scream as she punches a hand in the air "PLUS ULTRA " and grins at her achievement .
Sanemi watches from the sidelines as his eyes flicker in amusement and pity . What she just did was barely anything " Oi idiot ....drink something before you pass out then come back and we will do something else ." 
She nods moving as quickly as she could to go into the building then leave once she was refreshed. " Alright...LETS DO THIS "she nods as she stares at the male .
He grinned at her evily .
Timeskip brought to you by Naptime .
The white haired male was making his way to the Butterfly Estate , but he wasn't exactly alone .
Over his shoulders laid Thana , who looked as though she had gone through hell and back. Her hair was messier than usual , she had leaves and sticks in it . Her face had some dirt and cuts covering it.  Her eyes were completely white as her pupils had rolled to the back of her head. She could feel her muscles twinging with pain as a few of her limbs spasm . She trembles quietly as her chest raises and falls in silence . She felt as though each of her limbs have been pulled like taffy .

She was very fit but the problem was that she had endless energy at night which immediately washes away any strain she might feel if she were normal and preformed all those tricks . But if she were to do them in the morning her body would feel heavier .
Basically it felt like she had weights strapped to her body while she exercised in the light.
She moves her hand wincing softly " ....you're...a ...slave..driver " she whines as they reached the estate .
He rolled his eyes " This is basic training so stop your whining." He entered the estate, searching the area as he came across some kakushis " You , take her and make sure she survives , she still has to continue training with me.  " 
She whimpered at what he said as she was handed over to one them, they bowed out of fear and respect before rushing off while one went to find the Insect Hashira to alert her of the new patient.
She was then placed in one of the hospital beds as her body twitches resembling a dead spider, slowly but surely she felt her aching muscles relax as she closes her eyes .

The shoji slides open revealing a certain purple eyed female, who gazes over at her new patient before her eyes close while she smiled .
"Ara ara Kamijo-san,  I didn't expect to see you here, especially with your abilities ...hmm what happened " she leans over the bed raising an eyebrow at the female.