The Femboy's Mana Hole Training

Clang. Clash-clash. Screee—krrk!

"Hah... hah... nngh!"

"..."

Clash. Clatter!

"Guh... hah, hah..."

Every attack I threw with everything I had amounted to nothing. Master hadn't taken a single step from where she'd first stood. She turned aside every strike as if it were nothing at all, then dropped me with one casual blow.

My arms trembled and refused to rise. Thick, sweet-tasting drool spilled from the corner of my mouth.

You see it sometimes in those martial arts novels. The idea that merely crossing blades with a master is enough to grant enlightenment. That your swordsmanship and your realm of cultivation leap forward in an instant.

All of it is a lie.

The fever dream of some blowhard who's never so much as held a sword. It has to be. Because if it weren't, there would be no explaining why my skill is still this pathetic.

This isn't some ordinary expert I'm training with. This is the hero who saved the world. The woman they call the Goddess of the Sword. I cross blades with her every single day, and this is all I have to show for it...

So yes. Those stories are nothing but a pack of lies.

They have to be. The alternative is too depressing.

"Hah. That's not it. Why are you suddenly doing this clumsy impression of a heavy-sword style? We've been over this. Given your height, your build, all of it — you're a swift-sword fighter. Technique first. I don't love it, but you've followed that well enough until now, so what's today about? Don't tell me this is you acting out over what happened at breakfast."

"Hah... hah... That's not it. Lately, no matter how much I practice, my swordsmanship doesn't improve at all. And Master's swordsmanship is a heavy-sword style with overwhelming destructive power. I'm your only disciple, so... I wanted to follow in your footsteps."

"Hah. Tch. You think it's that easy? That's the kind of destructive force you get from cramming mana into a body trained to its absolute limit until the flesh itself is begging you to stop, then detonating it. It might look similar from the outside, but what you just cobbled together has nothing to do with the real thing."

Master's words dragged me back to cold, hard reality.

"...Then I'll never be able to learn your swordsmanship?"

"Heh. Not necessarily."

She dropped down beside me with a thud.

"Everything has stages. Start with a swift-sword style your body can actually handle. After that, you train the flesh, pick up the heavy sword, and learn enough mana control to manage the extreme overload it puts on you."

"Ah..."

So Master had a plan all along.

"And do you know the biggest difference between you and me when it comes to learning swordsmanship?"

"Huh? Ah, umm..."

The question came out of nowhere. I looked at her, thought for a moment, and answered.

"It's the physicality, I think. Height, especially? There's a seventeen-centimeter gap between us."

"Hmm. Wrong. We've been living and training together for years and you still can't get this one right. How disappointing."

"Th-then what is it?"

"What else? Whether you've got a big cock or not. This thing of mine — thick, well-shaped, hanging heavy. I've got one. You don't, Haon."

"Y-you're joking, right?"

"No, I'm serious. Fully hard at two and a half inches. A complete washout as a male. My little femboy Haon~"

Master's mouth curled up. She let her tongue peek out and laughed at me like I was a punchline.

I was being completely serious, and this was the answer I got. The fight drained out of me. I just sat there, hollow.

Whether she could tell how I felt or not, her smile only deepened. That beautiful smile I saw every day snagged on something ugly in a corner of my chest and made my brow furrow.

Irritation? Emptiness? Anger?

Some feeling I couldn't name welled up from deep in ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠my chest.

"Please stop joking around. I'm being completely serious right now! And you keep calling me a femboy, but I'm a man too. M-my dick's a little small and I'm short, that's all — I'm a proper man! So from now on, please don't call me a femboy!"

I snapped.

For the first time in my life, I talked back to Master — sharp, loud, and full of spite.

"Hah... hah..."

The beautiful smile that had filled her face drained away, turning cold. A look like a midwinter knife-wind. So frigid it was frightening.

"That's— what are you even—"

She said it like she was reciting a law of the universe. Then she rose from the floor, and the sharp pressure rolling off her locked every muscle in my body in place.

"Hmm. Hitting a rebellious phase, are we? Think you've grown up a little? That look in your eyes, daring to glare at your Master — it's almost provocative. Fine. You don't trust me. Then I'll show you. Why you're a femboy, and what training method actually fits you. Follow me."

The place she led me to was the underground training hall.

I didn't come here often. I waited ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠a while, and then Master approached carrying something.

"Most people in this world are born as one of two sexes — man or woman. A vanishingly small number are born as futanari, like me. But that's not the whole picture. There's a fourth sex that is neither man nor woman nor futanari. That's you, Haon. A femboy. Not some pretty-faced fetish you see floating around the internet, not some guy who crossdresses now and then. A femboy in the truest sense of the word."

"Ah, uh... what?"

"I've been turning it over since the day I took you as my disciple — how to train you. If you were an ordinary man, or a futanari like me, it would be simple. A real femboy, though... you're a first for me too. So after a lot of thought, I started developing a training method exclusively for you. This is it."

What she held out on her palm were two objects.

One was a silver thing whose purpose I couldn't begin to guess. The other was a white rod, thick and blunt at the front, tapering toward the back — something about it made my skin crawl.

"What are these?"

"Heheh. What are they, you ask?"

Master smiled in a way that did not comfort me at all, and began to explain.

"Until now, you've been accumulating mana using your heart and your dantian as mana holes. But those aren't the optimal sites for a femboy. For a femboy, the mana hole that produces the highest efficiency is the prostate."

"..."

I listened with my mouth hanging open. I couldn't manage a single word in reply.

"This rod is modeled after something called an Aneros. You insert it into the anus to stimulate the prostate. Its job is to wake a mana hole that's been lying dormant. And this is a chastity cage. It fits over that tiny cock and those balls of yours and cuts off the flow of mana to the heart and the dantian. Well? Impressive, right?"

"A-are you serious?"

"Of course. I was planning to wait a little longer before using them, but you were so impatient. What, do you think I'm joking again?"

Vmmmm.

Master breathed a thread of mana into the two objects. Blue light welled up from both, and intricate magic circles surfaced across their faces.

I barely knew anything about magic, but even I could feel it — a deep, precise current of power rolling off them. Whatever they looked like, these were no ordinary toys.

"All this time, when I punished you by spreading your ass and shoving my fingers in to rub your prostate — did you think I was doing that because I enjoyed it? It was for you. To develop your prostate mana hole even a little, and to wear down your resistance to having something inside you and taking pleasure through that gland."

"Ah... nngh..."

"And this insolent disciple of mine couldn't even see his Master's true intentions. What was that? 'Please stop joking around'? 'Don't call me a femboy anymore'?"

"N-nngh. I'm sorry..."

I bowed my head low and apologized in a shaking voice.

I'd always thought that playful face of hers was just her teasing me. I never imagined she had a plan like this. I was sorry. I was so sorry.

A foolish, pathetic disciple who couldn't even trust his own Master.

An idiot. A moron.

A washout as a male. Not even a man. A femboy who'd be better off as a female.

Yeah. That's right. I'm a femboy, just like Master says...

While I was busy tearing into myself, the two objects swam back into focus. The rod modeled after an Aneros, and the chastity cage. One to lock over ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠my cock and balls. One to push inside my ass...

Master must have read the look in my trembling eyes, because she started to tempt me.

"It won't be easy, of course. This chastity cage doesn't just clamp onto your cock. A thin rod goes into the urethra to lock it in place. It'll hurt quite a bit at first. And the prostate dildo won't hurt, ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠but a different kind of sensation is going to wear you down. You know the one. That pleasure you felt when my fingers tapped and rubbed you. You'll be feeling that twenty-four hours a day. Several times more intense than the cheap little taste I gave you."

"Hah... hngh..."

A rod... inside the urethra? Is that even possible?

And a dry orgasm through the prostate — twenty-four hours a day?

Devilish pleasure several times stronger than what Master did, strong enough that she'd dismiss her own fingers as cheap?

"You're not backing out, are you? You may be a femboy, Haon, but your heart is solid. Braver than ordinary men. Braver than me, with this alpha-male futanari cock. Or are you not? Heheh. Do this and your skill will shoot up. You wanted to learn the heavy sword, didn't you? You wanted to follow in my footsteps because you're my only disciple, didn't you?"

Master looked down at me and curled her mouth again, grinning wide.

You're going to do it, right? After talking that big, you're not going to refuse, are you?

A way to get stronger is sitting right in front of you and you're going to throw it away?

Ha! And after all that shouting about being a man, about not being a femboy?

Tch. Rip that little dick off and just be a female. No — a bitch.

That was what seemed to pour out of Master's eyes.

"I-I'll do it. I'll train with the femboy-exclusive prostate mana hole method."

"Good. Smart choice. Heh. Heheh♡"

I couldn't tell what that laugh of hers meant. And with it, my new training began.