Corrupting the Magical Girl
In an unknown mansion, the hero magical girl Magical Seraphina awoke from a long sleep.
Her last memory was being severely injured and captured by villains, yet her body felt healthier than before, as though someone had nursed her with meticulous care even without medicine.
Where exactly had she woken up? Who had saved both her and Aquamarine?
Seraphina surrendered to her feet, which had begun moving of their own accord, and walked until her steps halted before a door that exuded a peculiar atmosphere.
"Does this... mean I should go inside?"
She had no idea who might be waiting within or what scene awaited her. Still, this was likely the mansion of whoever had nursed her and Aquamarine back to health, so at the very least there should be no one inside who would harm her.
"Right. If my feet led me here by instinct..."
- Creak...
"You've come, hero magical girl... Magical Seraphina."
The moment she opened the door, a man's voice reached her ears.
"I've been waiting for you. Exactly twenty-four hours."
Seraphina flinched at the man's words—he even knew her hero name—and shrank back behind the door.
'He knows my hero name... and he was waiting for me?'
Some people collected information out of interest in heroes and villains, and sites resembling wikis often posted detailed, unverified personal records. Yet those sites were swiftly blocked at the Hero Alliance's request or faced legal repercussions for spreading falsehoods. Consequently, ordinary citizens rarely knew a hero's exact personal details or hero name unless told directly by the hero themselves.
'He definitely isn't an ordinary person. Living in a mansion this large says enough.'
Seraphina had set aside her suspicions, believing anyone who saved her and Aquamarine must be a good person. But his precise knowledge reignited her doubts.
"Come stand before me, Seraphina."
"W-what?!"
Just as she tried to retreat slowly to assess the situation, the man's words reached her and her body moved on its own once more.
'My body... is moving by itself again...!'
With unnaturally natural steps, Seraphina opened the door and stepped inside.
"Kyaaah?!"
"Oh come now... no need to scream like that. We clearly saved you and your friend."
Inside the spacious room, lying naked on the bed and waiting for her, was Si-yoon. Rumi sat beside him, also completely bare, gently massaging his body with her breasts.
'These... these people saved us...?'
Seraphina covered her eyes with her hands in shock, yet she could not believe such people had rescued them.
"W-who are you people...?"
"This is the hideout and mansion of the villain organization Utopia. I'm its leader."
"V-villain organization?! Did you just say villain organization?!"
At the mention of a villain organization, Seraphina stepped back and immediately dropped into a combat stance.
"Whoa, easy! We have zero intention of fighting you. Besides... even if we did, you wouldn't stand a chance."
"That's right...♥ Master is far too superior and magnificent for weaklings like you to even dream of challenging♥"
Si-yoon raised his hands to show he meant no fight, while Rumi softly stroked his fully erect penis and sneered at Seraphina. It was both a genuine declaration of non-aggression and a provocative message: 'You couldn't beat us anyway.'
"If you're villains... why did you save me and Aquamarine?"
Seraphina wanted to immediately launch plant vines to crush those words, but she suppressed her rising anger and asked seriously to understand the situation.
"Ah... saved? Strictly speaking, we captured you. One green-haired woman like you... and one woman with long black hair. Ring any bells?"
"One green-haired woman like me... and a long-haired woman? Wait... those two...?!"
The faces of two villains flashed through Seraphina's mind—Chae-ryeong and Rui-lin, who had mercilessly trampled them from above.
"Correct. My lovely females who defeated you. I ordered them to bring you here. So I could make you my female slaves as well."
"Female slaves...? What does that even mean...?"
"Ah...♥ Perhaps it's still too early for a magical girl? Ufufu...♥"

Rumi gazed at the blushing, flustered Seraphina with amused eyes while deliberately jiggling her ample breasts—breasts Seraphina lacked.
"T-too early?! I... I'm a proper adult woman! Don't you know heroes can only be adults?!"
Seraphina glanced down at her own chest, then flared up and shouted indignantly that she was indeed an adult.
Seraphina and Aquamarine operated under the identity of hero magical 'girls,' and their slender builds were comparable to Rui-lin's slender mode. However, heroes were treated as official military assets affiliated with the nation and the Alliance. As Seraphina said, hero licenses were granted exclusively to adults. Both girls had received enhancement procedures at the Hero Alliance research institute weeks before turning adult, began active duty the February after their coming of age, and were now in their second year of service. In short, Seraphina and Aquamarine were both twenty-one. Even if they shouted "Magical Girl Seraphina! Aquamarine!" on the battlefield, they were fully aware adults. Compared to Rumi's absurdly voluptuous figure, Seraphina's chest was respectably perky for someone with a slender frame.
"Huhuhu...♥ So you still have your pride? How cute when you get angry."
"Tch..."
Annoyed by Rumi flaunting her chest, Seraphina still had more pressing questions.
"Anyway! That's not important. Answer me. What drug did you give me and Aquamarine? Our injuries healed far too quickly."
Even after more than twenty-four hours without medicine, contrary to the research director's warnings, both girls' bodies showed no abnormalities. Seraphina wondered if the institute's technology had been stolen—or if some other method had been used.
"Drug? What drug? We only fed you nutritious soup."
"That's right...♥ Soup filled with Do-hwa's sweet, nutrient-rich breast milk. It's Master's favorite, but we specially shared it with you two."
"B-breast milk?! Ugh..."
Seraphina's face twisted in revulsion. By normal standards, soup containing breast milk was hardly ordinary fare. Yet Do-hwa possessed the Slave Skill 'Breast Milk Enhancement.' Her milk was nutritionally perfect, carried aphrodisiac properties, and acted as a panacea capable of rapidly healing illnesses and severe injuries.
'Did the breast milk... suppress the side effects of the enhancement procedure...? I can't comprehend this at all.'
Seraphina felt strong repulsion at having consumed breast milk and found it difficult to believe it had suppressed the procedure's side effects.
'I don't understand anything... I need to get out of here fast. Being villains is already a problem, but their vulgar behavior and words make it even worse.'
Her body had recovered significantly. If the breast milk became an issue later, she could simply report it to the research director. What truly bothered her was Si-yoon declaring he would turn her into a female slave, and Rumi vulgarly jiggling her breasts to mock her. Even if they had saved her and Aquamarine, the fact that they were villains changed nothing.
"Female slave or whatever... I refuse to become something like that. Instead... since you saved me and Aquamarine, I'll leave quietly without attacking."
Seraphina turned her head sharply and declared her intent to depart peacefully.
"That won't do."
Target: Applying body control to 'Hero Magical Girl' Seraphina.
Yet the words about leaving quietly were nothing but Seraphina's delusion—an act of deceiving and mocking the superior, powerful male before her.
"Uwaah?! My body... again!"
The instant Si-yoon declared he could not let her go, Seraphina found herself walking straight to his bed and kneeling before him without realizing it.
"You and Aquamarine are already under the influence of my ability. That means... I can control your bodies however I please."
"Kh... My body moving on its own... was because of that guy...?"
- Shing—
In an instant, a sharp blade of ice hovered at the nape of the kneeling Seraphina's neck.
"Mind your tongue. How dare you call the great Master 'that guy.'"
Rumi took offense at the disrespectful address.
"I... am the hero magical girl Seraphina. Do you think I'd submit to threats like this? I was going to leave quietly, but I suppose I can't now."
Seraphina refused to yield despite Rumi's cold glare. Still kneeling, she leaned back and thrust out her hand.
"Seraphina... Expert Vine! ...?"
Despite her shout, no plant vines emerged to entangle Rumi and Si-yoon. Only an empty echo lingered briefly in the room before fading away.