The Ice Queen Corrupts into a Villainess Slave ♥ (1)
"I'll accept that proposal."
Si-yoon's sweet offer to help her take revenge on the Hero Alliance. Rumi agonized over it for a moment, tormented by memories of the past, but ultimately chose to become a villain and seek vengeance in order to cast those painful memories aside.
"From now on… I just need to work for Si-yoon, right…? Please tell me what I should do."
The emotion-choked, tearful expression on Rumi's face vanished completely, replaced by the same cold and resolute look she wore when she was active as the hero Ice Queen. Yet beneath that expression burned not a hero's sense of justice, but the vengeful heart of a newly corrupted villainess.
"Rumi, you're already under the influence of my ability to some degree. The power grows stronger the more we engage in physical intimacy."
"My ability corrupts humans… turning them into charming slaves loyal to my every word. The more you obey my commands and the more we mix our bodies, the stronger that corrupting power becomes."
"If I mix my body with Si-yoon… the power of corruption grows stronger…"
"Once the corruption reaches its peak, you'll evolve into a complete form known as a Corrupted Slave. You'll become more beautiful and gain tremendous power, and I'll command you as my Corrupted Slave."
Rumi couldn't fully grasp the explanation of Si-yoon's ability, but she clearly understood that the more she mingled with him, the more beautiful and powerful a slave she would become.
"Of course, the word 'slave' is used, but that doesn't mean my treatment of you will change much. If anything, I'll come to trust and rely on you even more."
"It's fine. I've already decided to devote everything to Si-yoon… to take revenge on them."
Si-yoon had worried Rumi might feel uncomfortable with the word "slave," but she showed no such reaction. Instead, she wore an incredibly gentle smile, as if waiting for any command he might give.
Rumi set the canned coffee she had been holding onto the table, then slipped off the bathrobe draped over her shoulders, revealing her naked body.

"Please corrupt me quickly… turn me into Master Si-yoon's slave…♥"
Rumi no longer called him "Si-yoon" but addressed him as "Master." It was clear proof of her complete acceptance of him, and a reply to his earlier confession that he wanted to make her his woman.
"I've been waiting to hear those words."
Si-yoon smiled softly at Rumi's seductive and sweet confession. He too shed every last thread of clothing, and without a single word, they pressed their bare skin together, feeling each other's warmth and scent.
'She's so delicate… Has she really endured all those hardships alone until now?'
Her skin, touching his, was impossibly soft and fragile—impossible to believe it belonged to a hero who had weathered countless storms.
'His body is so solid and strong… I want to stay wrapped in his arms forever…♥'
Though their paths had differed, Si-yoon had also spent years as a bottom-rung fighter, enduring every kind of hardship in the Dark Knights and the villain world. His thick, heavy muscles were both a gift of nature and proof of how fiercely he had survived.
"Chuu…♥"
Completely captivated by Si-yoon's warmth and scent, Rumi gathered her courage and kissed him first.
"Chuuuut…♥ Mm-chuu…♥"
She pushed her tongue between his lips, moving it eagerly again and again, trying to share her warm breath and sticky saliva with him. Unable to lose to her adorable efforts to please him, Si-yoon wrapped his tongue around hers in a deep, passionate kiss.
"Chupaat…♥ Hauuum…♥ Haaat…♥"
After a while, their intertwined tongues and lips parted, leaving a glistening thread of saliva between them.
"You… asked me to use my breasts before, didn't you…?"
Rumi licked the saliva from her lips, then lifted her plump breasts with both hands and shook them enticingly. They swayed like white milk pudding with cherry petals scattered across them.
Si-yoon gently cupped the pale breasts she offered.
"Hnn…?!♥ Si-yoon… M-Master…♥"
She had changed her form of address to match the title "Corrupted Slave," but the unfamiliarity made her slip back into "Si-yoon." Si-yoon found her awkward, embarrassed naturalness rather endearing.
"Huu…♥ My breasts… feel so…♥ Haaat…♥"
His thick fingers gently teased her pink nipples while his palms applied firm pressure, lightly kneading the springy flesh.
"Hnnngh?!♥ Aaaah…♥"
When he suddenly took her nipple into his mouth and sucked, the unfamiliar sensation made her eyes widen in surprise. His lips sealed around the bud, his tongue swirling and massaging it with saliva, occasionally flicking teasing circles around the areola.
'Master…♥ He looks just like a baby nursing…♥'
Gradually growing accustomed to the stimulation, Rumi looked down at Si-yoon suckling her breast. Something between feminine instinct and maternal affection stirred within her, and she smiled gently while patting his back.
Though Rumi had not yet become a full slave and produced no milk, Si-yoon showed no disappointment. Satisfied, he released her breast from his lips.
"My nipples…♥ feel so good…♥"
Staring curiously at the now-erect crimson buds glistening with his saliva, Rumi rolled them between her fingers.
"Then… I'll make you feel good with my breasts and mouth now…♥"
Rumi vividly remembered the morning after their first night together, when she had served him with her breasts and mouth. Since Si-yoon himself had requested that pleasant service, she had kept it in her heart, determined to do it again the next time they were intimate.
"Please wait just a moment…"
Changing position, Rumi knelt between his legs and took his half-erect shaft in both hands.
"Like this… sandwiching Master's cock between my breasts…♥ Fufu…♥"
She nestled his length between her plump breasts.
"Haa…♥ Master's cock is so energetic…♥"
Stimulated by the soft pressure of her breasts, Si-yoon's thick penis stood proudly even between her generous cleavage.
"I'm still clumsy… but I'll do my best…♥ Hauum…♥"
Rumi opened her mouth wide and took the swollen glans inside, lowering her head in an attempt to swallow it deeper.
"Kuuuup…♥ Hauuum…♥ Chuuup…♥"
Her inexperience kept the depth shallow, but the simultaneous up-and-down motion of her breasts more than compensated.
"Puhhaat…♥ If I just rub it dry… it'll hurt Master… Bueee…♥"
Realizing there was no lubrication between his shaft and her breasts, she opened her mouth wide, stuck out her tongue, and let saliva drip into the valley. Once a small, shallow pool of saliva had formed, she resumed moving her breasts while sucking the glans.
—Chup…♥ Chup…♥ Chup…♥
Thanks to the generous saliva, his cock and her breasts slid together without friction, producing lewd wet sounds as excess drool trickled down.
"Hauuum…♥ Ubu…♥ Chuuuup…♥ Kuuuup…♥"
She twisted her jaw and throat, desperately trying to take him deeper while never neglecting to stimulate the glans with her tongue and lips.
"Chuboot…♥ Chuuuup…♥ Chubububut…♥♥"
Realizing she couldn't reach the base with her mouth, Rumi changed tactics and began sucking the glans with much stronger pressure. Her tongue rolled slowly inside her mouth, stimulating the surface while she sucked hard on the tip and the slit.
—Chup…!♥ Chup…!♥ Chup…!♥
At the same time, she moved her breasts faster and harder, covering the entire shaft while continuing to drool saliva into the valley.
'Something… feels like Master's cock is getting thicker… This feeling…♥'
As the paizuri and glans-sucking continued, his shaft began to swell further—a clear signal that climax was approaching. Having mixed bodies with Si-yoon several times already, Rumi vaguely recognized this sign as well.
"Chuuuup♥♥♥ Chububut♥♥♥ Chooooook♥♥"
She licked and sucked the glans even more intensely, urging him toward release.
'No one ever taught me these things… but the Slave Brand must be engraving instincts into me without my knowing.'
Just as Si-yoon thought, the Slave Brand evolved with each stage, influencing not only the body but also the mind of the woman who bore it. Even without direct mental manipulation, the brand slowly awakened her feminine instincts.
"Chubut♥♥ Chubuuut♥♥ Chooooook♥♥♥ Kuuuup♥♥♥"
—Chupong!♥ Chupong!♥ Chup…♥ Chup…♥
Rumi's vulgar sucking sounds mixed with the lewd wet noises of her breasts slapping against his shaft.
—Byurururururururut—!!!!!♥♥♥♥♥♥
Finally, the grand finale arrived as a torrent of semen erupted.
"Aaaah♥♥♥ Chuuuup♥♥♥"
Cheering as the waterfall of seed burst forth, Rumi caught it on her face while also sealing her lips around the spurting tip and swallowing eagerly.
'It's so thick and rich…♥'
—Byurururut—!!!♥♥ Byurururut—!!!♥♥
Semen continued to gush, forming a sticky white pool between her breasts and leaving glistening decorations across her pale face and silver hair. When the flow finally stopped, Rumi slurped up the pooled seed, savoring the afterglow.
"Huruuurup…♥ Gulp…♥"
Its concentration, viscosity, taste, and sheer volume were on an entirely different level from ordinary semen. For Rumi, who had sworn to become Si-yoon's woman—by him, for him, and only for him—this was now simple common sense.
And that common sense drove her to take the next step toward deeper corruption.
—Chuuuurp…♥
Having cleanly swallowed every drop clinging to her breasts, Rumi spread her legs and parted her slick, sweat-and-love-juice-soaked folds, exposing herself completely.
"Please use my hole however Master wishes…♥"