[Brain Drain, Hakutaku TF]

“Ooookay! That should do it!”

An excited yet nervous voice echoed throughout the dusty looking library, untouched books surrounding a haphazardly drawn circle and the girl who spoke out into the empty air around her.

The girl had gentle red hair that barely reached a few centimeters down her neck, and her soft cherry eyes only emphasized her kind nature. And yet despite this look, her pointed hat and her choice of clothing being little more than a robe made it clear that she wasn’t all fun-and-games.

She was a young magus. Far too young compared to her peers. And yet she was not willing to wait as long as they had to gain the knowledge that brought them closer to the heights of knowledge that made them that powerful. She wanted her knowledge now! The faster, the better!

As much as her Master, the deceptively young looking boy who always told her to pace herself, pleaded with her to try and dissuade her from this path… She never listened. And on some level, he understood. Because unlike him and his fellow mages, she was but human. She only had so long before she’d end up passing on without leaving her knowledge to the future generations.

That was his side of the problem. But really, she was just impatient. It wasn’t fair that he was like half her height, and yet he was able to cast spells that could incapacitate armies, or make the stars in the sky shine different colors, or even turn wood to gold like it was nothing. She wanted to be able to do all of that stuff!

“So I just have to pour out a bit of blood corresponding to the Monster Girl that I want to turn into…” The youthful mage muttered to herself as she slowly looked towards the single ingredient that she had prepared for this ritual. A bottle full of a viscous liquid that would help her attain the form that she desired above all else.

What was the solution she had put together to try and overcome her human limitations? Why, it was to throw it all away and replace her humanity with the body of a Monster Girl that had the kind of knowledge that she needed! And while she knew that a lot of the ones that were loyal to the Monster Lord were a lot smarter than even her teacher… She didn’t really want that loyalty baggage on her shoulders. She’d prefer to be independent.

It was because of this that she had picked out the Hakutaku. An intelligent Holstarus off-shoot that would be able to dwarf her teacher in knowledge… And maybe a little more than that. She didn’t pay much attention to the extra details, just that the Hakutaku were extremely smart.

Now… Because of her natural impatience, she cut a few corners. First and foremost, the circle on the ground. She had really just drawn it with nothing but a piece of chalk. So it didn’t surprise anybody that the circle was very improperly proportioned, and that the lines were rather improperly angled. Not only that, but she should’ve used several high rarity ingredients to construct the circle, leaving that as one vulnerability.

The next vulnerability? The ritual called for a Monster Girl’s blood. She cheaped out because there was no way that she was going to get ahold of a Hakutaku, let alone get a bit of blood from one. Then again, one of the younger female mages that her teacher knew seemed to have horns, maybe she should’ve asked that girl… Eh, she had gotten this far on her own, she wasn’t about to ask for help. The Cow blood was going to be good enough.

“Okay, so I juuuust pour it down, and then everything should be good. Right? Right. Totally right.” The young mage spoke aloud as she lightly shook the bottle full of blood. And she shivered. She could feel the trembling worries pouring through her.

Was she really about to do this? Was she really just going to throw away her humanity because she didn’t want to wait years for her to learn the secrets of everything? Did she really want to throw away her chance to learn things organically and enjoy the process of discovery that her teacher advocated for?

Yes. Yes she was. It didn’t matter that she felt scared, she didn’t want to wait a decade! And he told her that it was just the first step, there was several thousand steps after that! She wasn’t going to live that long! Even if she didn’t end up smart, at least she’d have the lifespan to deal with so much knowledge being slowly poured into her brain!

With her mind made up, the young mage uncorked the bottle and casually tossed the contents into the middle of the circle, quickly tossing the glass away as she took her position in the middle, grinning from ear to ear as the crummy circle started to glow. “It’s working! It’s working! Smarts, here I come! Hakutakudom, here I come!” She cried out in excitement, the lights in her eyes shining brightly…

Her hat flew off as the power started to flow through her, a moan leaving her lips as her body started to take on a milky shade of white. The colors seemed to be the same as what she had read about in the book that contained the spell. All involving a major aspect of the Monster Girl that she wanted to transform into.

So this white stuff had to be… the milk of knowledge? Something like that, but she wasn’t about to complain about the cosmetic parts of the spell. As long as it transformed her into the smartest cow in the whole wide world, then she would be a-ok with the rest. She just needed to wait for the rest of the spell to take over, and she was set!

The mage closed her eyes and let the spell wash over her, the white glow slowly forcing the clothes off her as her body grew warmer and warmer with every passing moment. Like she was being wrapped in one big blanket that was making her comfortable with the changes happening to her body.

And what changes they were. The warmth made it hard to process, but the fur that grew down on her legs was thick and too obvious to ignore. Combine that with her feet melding together and turning into a set of powerful hooves, and she certainly looked like a bovine. Especially when the fluffy and cream-colored tail sprouted from her rear.

The changes continued up her form as she let out another moan, as she could hear her breasts inflating. Or rather, being filled until they were hefty and filled with the ‘milk of knowledge’. Of course a cow needed to be milky. Even though they were smart, they were still bovines at heart… And besides, who would turn down a nice self-served drink?

Now, if she had bothered to use the right ingredients, she would’ve stopped growing a cup or two ago. But she was still growing. She was getting bigger in all of the wrong ways, to the point where she fell onto her knees, both of her breasts swaying from side to side…

Her moans were dragging out into moos as the milk started to leak from her nipples, while the warmth coalesced inside her head as something started to push out the side of her head. The warmth dulled the pain of the growth, turning it into pleasure as her eyes slowly opened back up and rolled into the back of her head.

“MMMMOOOOO!”

The mage cried out as her nipples started to squirt out fine little rivers of milk, while her snatch started to look like a waterfall with how much it was leaking. All while a pair of long and thick horns poked out of the sides of her head, the horns of a Hakutaku…

Only, there were a couple of problems. Namely the fact she was completely naked, she was quite a bit curvier than the average genius cow… And she could barely recognize anything around her, satisfied just by hearing her own moos…

In fact, just the sound of her own voice was enough to bring her pleasure. So much so that her ‘genius’ mind decided to make more sounds. How? Simple, by shoving her hands down towards her breasts, pinching them and milking them to bring more pleasure through her.

She mooed and she mooed, trembling as milk poured out of her udders the more she pinched them. The more she indulged herself, the more she wanted that feeling to never stop. She was enjoying the experience far too much to let up.

This was what happened when you messed up the Monster Girl spell. You would end up a perverse and brainless mockery of your desired target. And in the case of her monumental screwup, she made the brilliant Hakutaku look like a common domesticated cow. Desiring nothing except being milked…

Her teacher would have some choice words for her, once she was restored to normal… Assuming he didn’t end up having plenty of fun with her milky self.

There was nothing else on her mind except being milked, the giggly Hakutaku continuing to spill her nutritious milk all over the ground as she played with herself.