Izuku's POV

Knock knock knock

The doctor opened his eyes. What time was it? Trying and failing to blink the tiredness out of his eyes, Izuku squinted at the clock.

It was 5 in the morning! Who could possibly be here at this ungodly hour? A patient?

Hastily throwing on his doctor robes, he stumbled his way to the door. He sincerely hoped he hadn't accidentally signed up for an alarm service to come wake him up, or that this wasn't some ploy to rob him.

Gripping his surgical scalpel in his hand just in case, he opened the door.

He quickly blinked the sleep out of his eyes, successfully this time.

A Pink Faun? Yep, that's one. Even in the dim light provided by street lamps it was clear that her skin and hair were completely pink, she also had somewhat square shaped eyes, with black scleras and light yellow irises, and ears that ended in a sharp point.

Despite their name, pink fauns didn't have hooves like their northern cousins. Their body build was of a human, only with bright non-human skin colors. Like most faun species pink fauns were named after their skin color. While some had claimed it was about racism, it was mostly due to the fact that all faun species, be it pink, blue, green, etc had the exact same color for all their skin and hair, making it the easiest see method of identification.

Pink fauns had the power to produce acid from special glands. However, they were special in that they could do it from practically their entire body. This made fauns very difficult to catch or subdue should you need to fight or hold one down.

A shine from her hands caught his eye, and he looked down.

Oh boy. Judging from the liquid dripping from her hands, and the fact that the area where it was dripping had its paint dissolved and the rock looking noticeably corroded, she had acid incontinence, overproduction of acid by the glands. All monsters that produced chemicals from their body could suffer from this, although pink fauns had higher risks of this due to their abnormally high production, being able to produce acid from their whole body as opposed to say, only the fangs or hands.

"Can I help you?"

"Uh, yeah, hi." The girl raised her hand to wave to him, and he recoiled behind the doorway. Luckily, the action was fast enough that she reconsidered it and put her hand down. "I, er, kinda need help with this?"

He squinted up and down the road. While nobody would give up patients so early in their career, why was she here? While his clinic was equipped for night visits, well technically this was an early morning visit, there had to be more specialized night clinics nearby.

He asked her, and she blushed. "Well ah, this place looked the cheapest?"

Fair enough.

"Ok, give me a moment." He went to the back of his clinic, into the storeroom, and grabbed large sheets of treated fabric. These were sown with tough fibers and soaked in the sap from rubber plants, so they were acid resistant. Her clothes and shoes were probably made of something similar so he didn't need to offer her a rubber gown.

He draped them over his chair, the table and the floor leading between the door and the chair, and motioned for her to enter. She came in, carefully stepping on the path he had laid for her from the door.

Pulling out gloves, he sat down opposite her and felt her pulse. "When did this start?"

"Dunno, last week?"

His eye twitched. Last week? She had been leaking acid since last week? Did nobody in this city know how to see a doctor on time?

"Specifically?"

"Last Tuesday?"

It was Saturday!

"Ok, hold your hands over this, and produce just a little bit of acid, no more than a few drops." He held out a glass beaker, and she raised her hands over it. Carefully, he grabbed her wrist and shook it, spraying a small amount of the acid into the container. He didn't want to risk her producing enough acid to drip, since with acid incontinence producing even a small amount might lead to a sudden overproduction of acid, splashing it everywhere.

He swirled the liquid around. It looked about the right consistency, so it wasn't dilution. It wasn't really discolored either, so more likely than not this was caused by overproduction, causing production fatigue, making it so the glands couldn't stop producing acid, and leading to a vicious cycle of even more acid production and more fatigue and so forth.

"Wow, this place is a lot more fancy on the inside!" The faun leaned back and stretched out her limbs in all directions like a starfish.

His eyes widened at her state of dress. Her skirt was a little too short for a pose like that, showing off a little too much of her admittedly nice legs when she stretched.

He quickly turned his head away before he got caught staring.

"Yep, I spent all my money on the inside, it was more practical."

"That's smart!

He smiled at her, simultaneously pulling out a testing kit and dropping powder into the beaker. There were only two possibilities left, the most likely possibility was acid incontinence but it could always be illness. It was better to double check.

The office had become strangely silent. He glanced back at her, to see the faun studying his face intensely.

"Are you human?"

He looked at her carefully. Well shit, this was a predicament. Humans weren't hated in this city per se, but they were certainly looked down upon by the populace for not having any special powers or mutations of any kind. Well, some humans had powers, but they were so few there was practically no point in mentioning them. He had normally passed himself off as a woodland sprite due to his green hair, but that didn't seem like a good idea now. Woodland sprites had plant based powers, and despite her airheaded personality the faun seemed pretty perceptive when it came to people.

He sighed, seeing no other way out of this other than the truth. "I am."

"Oh, that's so cool! I've never met a human before!"

He blinked. "You don't mind that I'm human?"

"Why would I?"

"Oh." He tried to ignore how light his chest suddenly felt, simultaneously pushing bad memories of the Academy out of his head. "Thank you."

"I didn't even know humans could become doctors here!"

"It was difficult. I was honestly planning to be a doctor further north." Ideally, Izuku had been hoping to travel to a more northern city or even to Kamino which was to the east, as they had a larger population of humans and was closer to All Might's sphere of influence, but his professors had explained to him that that was impossible with the current situation. So here he was.

"Aw, that's too bad. But that's good for me, having a cutie like you serving me."

He coughed and sputtered, almost dropping the beaker of acid. Were all fauns this direct? He appreciated the compliment, but- Wait, she was still staring at him! What was he supposed to say to something like that?

"T-thanks, you're cute too."

Mistake! Mistake! His brain screamed at him again, and he opened his mouth to apologize.

To his enormous surprise and relief, she did nothing more than blush herself and grin. "Thank you!"

Well, the tests had shown it wasn't overproduction. Pulling out a bunch of herbs, he compressed them in his hands and crushed them into small flakes. This would help by shutting down the glands, which would make it so her glands would be forced to rest and hopefully stop their overproduction.

'Well, looks like it's acid incontinence caused by overwork. Don't produce any acid these next few days. Not even for mundane things like lubrication or cleaning. Are you working or in school right now?"

"I've got a part time job."

"What's it for?"

"I'm a waitress!"

"Oh." If her job had been something critical he might have altered the treatment so she could still go, but this job could wait. "Take a few days off." "Take a few days off."

"But I don't have any vacation days."

He blinked his eyes rapidly. He had been able to push the fatigue out of his body to treat her, but he still desperately wished he had some coffee. "Don't worry about it, I'll write you a letter of excuse. It'll make sure your boss will have to give you the days off."

"Got it!" He wrote up a quick letter for her boss excusing her for a few days while the medicine took effect. Hopefully whoever was employing her would still pay her.

"Not only that, try to minimize all movement. Don't do strenuous exercise, don't do any intensive labor, hell, don't try to leave your house at all the next few days." Fauns instinctively produced much more acid when undergoing strenuous activities, theorized to either help them cool off or because the body thought they were fighting for their lives and produced it defensively.

'What?" From the look on her face you would think he had told her her puppy died or something. "But I have so many plans!"

"Sorry, but you'll recover faster this way. Trust me, I'm not trying to sabotage your social life or anything, just don't go for anything. Stay as still as possible."

"Can I at least have friends over?"

He considered. While ideally she should really just lie in her bed for the entire day, that was incredibly impractical. Plus, she seemed like the kind that would break and run out of her house after a few hours if he didn't allow her some form of social activity.

"That's fine."

"Really? Yes! Thanks doc!"

'Wait-"

And before he could stop her, Mina threw her hands open in celebration.

A massive gush of acid flew from her hands and arms, splashing across the room and everything in it.

The two of them stared in shock, looking around the room as most of the furniture melted or broke apart.