How to Corrupt a Hero Magical Girl (3)
"I am… the hero magical girl Seraphina. Did you really think I would yield to such threats? I was going to go quietly, but it seems I can't."
A sharp blade of ice extended from Rumi's fingertips and pressed against her own throat, yet Seraphina paid it no mind. She thrust her hand toward Si-yoon and Rumi, shouting.
"Seraphina… Expert Vine!"
Despite her cry, no plant vines coiled around Rumi or Si-yoon. Only a hollow echo lingered briefly in the room before fading away.
'My body still isn't fully recovered… Is that why my power is lacking?'
Seraphina assumed her senses were dulled from having only recently awakened after collapsing. She kept closing and opening her eyes, concentrating as she waved her hand.
Yet no matter how desperately she tried to summon the vines, not even a single leaf sprouted from her fingertips.
"What… what's going on? Why aren't the thorn vines coming out?"
Since Si-yoon was controlling her body at will, the only way for Seraphina to resist was to find an opening and strike with her ability. But when even that failed, her face went pale with panic.
> Applying ability nullification to target: 'Hero Magical Girl' Seraphina.
"It's useless. Your ability has already been nullified."
"That can't be… There's no way something like that is possible…!"
"No way? You're proving it yourself right now, aren't you? No matter how many times you reach out, all you'll do is tire out your own arms."
Seraphina refused to believe Si-yoon's claim that he had nullified her ability. The principle behind how abilities manifested and operated had yet to be fully understood, so the idea that they could be nullified so effortlessly defied all common sense.
"It's only natural you wouldn't believe it. This power… belongs solely to our great Master♥"
Each function of the Corruption System was already absurdly overpowered on its own. The fact that he could access all of them simply by touch made it worthy of serious study. It was only natural that every female who had become his slave had reacted with the same disbelief upon first witnessing his ability.
"That cumbersome outfit is no longer necessary for you. If you're going to become my slave… you'll have to get used to walking around with nothing on at all."
> Applying body control to target: 'Hero Magical Girl' Seraphina.
"N-no…!?"
Seraphina tried to resist the hands attempting to strip her, but the authority to control her body already belonged to Si-yoon. The ill-fitting garment slid down past her thighs, revealing her slender, delicate body and pale skin.

"I knew it. There was a reason you got so worked up when you saw my breasts, wasn't there? Fufu…♥"
Her breasts were modestly plump, and her slender frame carried a subtle feminine curve. Compared to Rumi's hyper-glamorous body, Seraphina's figure still held a distinct womanly charm.
"Uuu…"
While a slender build suited the image of a magical girl, Seraphina had always considered her own physique a complex.
"Well, it doesn't matter. There's a certain cuteness to it, isn't there? Besides… once you become a slave, your body will gradually change to become more like a proper female anyway."
Sexual allure and technique would naturally imprint themselves upon her once she became a slave, so a slightly smaller frame compared to his other females was never a concern for him.
"And… there's one more thing you'll need before you can begin your service."
- Tap!
Si-yoon leisurely admired Seraphina's completely naked body, then rubbed his middle finger against his thumb, producing a sharp sound.
> Applying estrus to target: 'Hero Magical Girl' Seraphina.
"Haaah…?! M-my body suddenly…!"
Her heart began pounding as if a motor had been attached to it. Sweat poured down like rain, and her entire body burned as though standing under the midsummer sun. On top of that came a throbbing, pitiful ache in her pussy and womb.
The sensation of estrus went far beyond simple sexual arousal. It was something Seraphina had never experienced in her life.
"Huuu…♥ Why… why is this happening…! Is this… also your ability…? Haaah…♥"
The pink nipples atop her modest breasts twitched with excitement, and transparent fluid mixed with sweat began to leak from between her thighs.
"Hmm… For her first service, receiving it with her mouth would be best."
Thanks to Rumi's diligent work coating his shaft with sticky saliva and massaging it, Si-yoon's cock stood erect, looking as ripe and appetizing as a perfectly matured fruit.
'W-whoa… Was a man's penis originally this big and terrifying…?'
Si-yoon's massive cock was on an entirely different level from any male genitalia Seraphina had known.
'That's not just a penis… It's definitely a vicious weapon…. But… why is my heart pounding like this…♥'
Faced with the enormous, ferocious shape of his cock, Seraphina felt fear, yet at the same time an inexplicable thrill and racing heartbeat.
"I want to give it to Rumi since she worked so hard to make it erect, but… just for today, I'll let the slave trainee have it."
"It's fine! Rather, I'm happy that a new companion has appeared with whom I can share Master's power together♥"
Rumi showed no disappointment at being unable to suck the cock she had so carefully prepared. Instead, she rejoiced at the thought of a new companion with whom to share pleasure. She trusted that Si-yoon would always cherish and love her, and ravish her whenever he wished.
'I-if something like that touches my body anywhere… I'll definitely break…!'
Seraphina was terrified. She had never felt this kind of fear even when undergoing painful ability-enhancement procedures or when seriously injured while fighting powerful villains. But now everything was different. Her body wouldn't obey her, and her ability had been sealed. The thought of being violated by a man with such a monstrous penis was impossible to face without fear.
"Then… Magical Seraphina. Begin your service at once."
> Applying body control to target: 'Hero Magical Girl' Seraphina.
"Kyaaah?!"
Still reeling from the mix of fear and strange excitement at the prospect of being defeated and violated, Seraphina's body reacted instantly to Si-yoon's command. She crawled onto the bed where he lay on all fours and looked up at his towering erection.
The massive penis cast a shadow all the way over her head, while an overwhelming masculine pheromone scent began to assault her sense of smell first.
'It's not just the size… The smell is… incredible…♥'
Combined with the steadily intensifying effects of estrus, the pheromone scent made Seraphina completely forget any thought of fleeing or attacking.
"How is it…? Master's magnificent and superior cock♥ Isn't it truly magnificent? Just getting close to this pheromone scent feels like your brain is being violated…♥"
"Y-yeah. It's amazing… I've never seen anything like this…♥"
Seraphina unconsciously echoed Rumi's praise directed at Si-yoon's cock.
"Now then…♥ Gently lick Master's cock with your tongue… and suck it like this with your lips…♥"
Rumi seized the momentary lapse in Seraphina's mental focus and demonstrated the motion with her fingers, showing her exactly how to perform fellatio.
'W-what is she saying! Get a hold of yourself, Seraphina. You mustn't fall for these vile villains' tricks!'
Yet Seraphina had nearly been swept away in an instant. She desperately steadied her mind, shaking her head vigorously as she denied Rumi's words.
"I-I don't want to! I won't do it. Something like that man's thing… Huuuum?!♥"
Her refusal changed nothing. Si-yoon's body-control command had already completely seized her body and moved it against her will.
'My mouth feels like it's going to tear…! There's no way I can swallow something this big…?!'
Even just holding the tip of the glans in her mouth under the force of body control looked overwhelming for Seraphina. Her body seemed to realize it couldn't yet swallow the glans, so she pulled it out and began kissing the shaft with her tongue and lips instead.
"Nchuut…♥ Chuuuum…?!♥ Uuuuum…!♥"
"Everyone finds it difficult to swallow at first. That's how great Master's cock is…♥ So… just lick and kiss it slowly like I showed you earlier."
She gently moved her tongue to stimulate the veins along the shaft, licking them clean before sucking on the same spot with her lips—a basic service technique.
"Juuuuwut…♥ Chooook…♥ This is how you do it…♥"
Rumi demonstrated by licking the cock herself right beside Seraphina, and Seraphina's body followed the lesson, slowly coating the shaft with her saliva. Of course, Seraphina tried with all her might to keep her mind clear and stop the service, but it was naturally impossible.
'The smell is…♥ driving me crazy…!♥'
Si-yoon's pheromone scent was far more concentrated than that of any other male. To a female in estrus, it was sweeter than any drug, and once inhaled, it became dangerously addictive. Sticky love juices continued to seep from her pussy, while her small nipples and clit stood stiffly erect. Seraphina's mind, addicted to the dense pheromone scent, was slowly reaching its limit.