Success: Conversion Complete
The clear blue sky stretched endlessly above the lush green of the central garden. As always, Luna walked through it bathed in warm greetings.
Researchers, agents, fellow nuns, security guards, even the cleaning staff—everyone smiled and offered her a friendly hello. Their smiles were the same as ever, though they carefully hid their discomfort beneath them. Luna, returning their bright greetings with her own gentle smile, knew exactly why they felt that way.
It was because of her outfit. Because of the raw sensuality that radiated from her body.
The black nun’s habit was now several sizes smaller than before, the fabric clinging tightly to every curve. The lines of her figure that had once been hidden were now fully exposed, and her skin glistened with a thin layer of sweat that carried a sweet, intoxicating scent. Watching the men blush and avert their eyes from her obscene appearance filled Luna with deep satisfaction.
“.....♡”
Beneath the thin habit, she wore no underwear at all. A thick dildo and a vibrating rotor were buried deep inside her ass.
“Haa… The ‘exposure’ training you gave me last time feels so incredibly good, Isabel…♡ The thought that someone might catch me makes my back hole clench so tightly around it. The pressure is absolutely divine…”
“…I’m glad you like it. But aren’t you getting a little too obsessed with ‘prayer’ lately?”
“Haha, what are you talking about? Nothing’s changed at all! If anything, you’re the surprising one. I can’t believe you’ve been a believer in the Lord all this time. If you’d told me sooner, we could have gone to the cathedral together!”
Luna was mistaken. She hadn’t yet realized that the object of her faith and worship had completely changed. Through repeated possession and suggestion, her perception had become profoundly warped.
The object of her faith had been replaced with “Master.” The proper way to offer prayers to him was through “sexual pleasure.” Because she was a nun who had to preserve her virginity, she couldn’t touch her pussy—but this was more than enough.
Using my pussy would be masturbation. A betrayal of God. But if it’s anywhere else, I must use it for prayer.
That was how she demonstrated her faith and devotion to Master. It was how she proved her unwavering conviction.
“…Still, you might be right. I do seem to be spending too much time in prayer lately. How should I put it… Every time I pray now, I feel like I’m truly connecting with Master. My insides get all tight and warm, and it feels so incredibly good. Maybe that’s why.”
“…Is that so?”
For Luna, who had once boasted unmatched faith and character even within the British branch’s cathedral, this distorted perception was a fatal blow. Her days, which once began with prayer, had transformed into mornings where she shoved a dildo into her ass. Her quiet walks meant to clear her mind had become secret exposure play in shaded corners. Her solemn evenings of reflection were now spent in her private room, sucking on a dildo stuck to the wall.
The Saintess who had been a ray of light for the agents fighting against the masks had been reshaped into a Mask Saintess who would gladly offer even her purity for Master.
The faith I taught her—the suggestion that “There is no way the teachings about Master could be wrong”—had been accepted far too easily by Luna’s already heavily corrupted soul. Thanks to that, her fall had accelerated rapidly. Yet her belief remained stubbornly bright.
To fully claim Luna’s faith as Master’s, I needed to completely deny everything she currently believed in.
That was the final step.
The last step to push Luna into her Master’s embrace.
“By the way, Isabel? Why did we come to such a secluded spot? If we’re just going to talk, there are benches over in the brighter area…”
“What I’m going to teach you today is very important. We can’t do it in the dormitory where so many ears might listen. Once lunch ends, the central garden becomes quite deserted.”
“Huh? An important… story? Why are you acting so serious? Well, you’re always a bit like that… Haha…”
I would plant the seeds of doubt inside the Saintess who was filled with faith.
“Luna. I want to save you right now.”
“…Save? Me? What are you saying? I’m…”
“From the heretic who has been deceiving you. I want to save you from him.”
“…H-heretic? I’m sorry… I don’t really understand what you’re…”
Her usual gentle smile was now tinged with bewilderment. Luna scratched her head at the claim that everything she had believed in was heresy—a lie. Even though I had implanted the suggestion that she should blindly trust my words, shaking her very foundation still wasn’t easy.
When Luna was young, after her biological mother passed away, she had attended church with her father. That was where she first encountered God. The young girl overcame the grief of losing her mother through faith. The same thing happened when she was eleven. Her father brought home a girl named Isabel, then lost his life during a mission.
Now, the only family Luna had left was me.
Every time I was sent on a mission, Luna would pray. And pray. If I returned safely, she believed it was God’s mercy. Watching her hug me tightly, tears streaming down her smiling face, always made me feel both pity and sorrow.
If God had truly intended to answer Luna’s faith, He should have saved her parents.
The god Luna believed in did not exist. And even if He did, He was nothing more than a venomous being who exploited the faith of His followers.
That was why I was telling her the truth. I was trying to guide her toward a brighter, truer path.
“…Luna. Has God ever answered your prayers?”
“O-of course He has! The fact that you always come back safely, that we can live peaceful lives just like before—it’s all…!”
“Then why… why didn’t our father come back?”
“…Isabel, what are you…!”
It was the first time I had ever seen Luna’s face twist like that. Anger, sorrow, and a tangle of complicated emotions warped her expression.
“Why can’t you answer? Why are you dodging the question?”
“D-Dad… Dad was… that is…”
“Was it because your faith wasn’t strong enough? No.”
Her face began to crumble. I stepped closer to Luna as she clutched her head with both hands. I placed a hand on her frail shoulder and whispered into her ear, painting her mind with suspicion and betrayal.
“I know very well that both your mother and our father were good people. Do you remember what the village priest said to comfort us when Father passed away? It was around the time we were seventeen.”
“…Father had an upright heart and a strong body. God would surely welcome him with open arms…”
“Then what about you?”
“………………”
“What about the daughter he left behind? The one who sent her father to heaven, never to see or hear him again? The one who kept praying to God every single day—for her family, for her parents who had gone ahead, and for me…? Luna, it’s been over ten years. You prayed without missing a single day. You believed in Him. You said that even if everyone else left, He would always stay by your side. So where is He now? Why doesn’t He answer your voice?”
The flowers blooming on the garden floor swayed in the breeze. Luna’s pupils trembled violently. Cold sweat beaded on her skin as her slightly parted lips muttered broken fragments like, No, I… that’s not…
The faith that had been carefully dismantled over the past week through suggestion finally cracked.
Of course it did. For the past week, what Luna had truly believed in wasn’t God—it was our Master. Her subconscious had memorized the pleasure that coursed through her body whenever she prayed while believing in Him.
Unlike the god who could only offer empty words like “It shall be so” in response to faith, Master answered with ecstasy. Luna’s subconscious already knew which of the two was the true being.
“N-no, no!! God has always listened to my voice!! Isabel, you’re here…! You’re the only one I have left… God has always protected and watched over you… That’s why we can be together like this, right…? So even if we can’t see Him, God is always by our side…!”
“…Really? Do you truly believe I came back safely because of Him?”
“…Eh…”
I stared into Luna’s once-clear eyes, now beginning to fracture. My own jade-green eyes—the mark of a Mask Saintess—gleamed brightly.
“…Isabel… you… how…”
“…God abandoned you, Luna. He didn’t protect me.”
Anyone belonging to the Special Countermeasures Division knew exactly what these jade-green eyes meant. But Luna didn’t scream. She didn’t run. She didn’t tremble in fear.
She simply let a single teardrop roll down her cheek, then collapsed onto the ground. She clasped her hands together.
“That can’t be. That can’t be. That can’t be. O Father in Heaven… T-this is all a lie, right? It has to be a lie. How could Isabel… become a Saintess…”
I sat down beside Luna as she clutched the cross around her neck and prayed. Then, deliberately, I spoke words I knew the Luna who once knew me would never expect.
“It’s okay, Luna… While you were clinging to that useless thing, I found my true Master♡ Of course, we won’t be able to stay together anymore… But thank you. It’s all thanks to you and Father…”
Something inside her shattered.
“No, no, no!! How could You do this to me?! After everything You’ve taken from me!! I never asked for anything in return! I only wanted to protect my family!! So why?! Why couldn’t I even protect the last of my family?! The only thing I could do was believe! So I believed!! You—You of all beings were not supposed to betray me!!”
Luna’s mouth was smiling. Her eyes were crying. Her voice was screaming in rage.
The moment everything she had protected her entire life came crashing down as she howled at the sky.
Luna had always been physically weak and lacked talent. Despite her wishes, she could never become an agent. She had tried to use her brilliant mind to become a researcher within the organization, but that hadn’t worked either.
It was only after a cathedral was established inside the organization—and after her father, who had desperately tried to prevent Luna from getting involved with it in any way, had died—that she was finally able to join.
The first news she received after entering the organization was the death of her biological father in battle.
But Luna never lost her smile. She never showed a dark expression.
Because she believed.
She believed in the God who had taken both her mother and father.
But that God had betrayed Luna.
By abandoning the one and only thing she wanted to protect—me.
“Then… what have I been doing all this time…”
The cross slipped from her fingers and fell onto the garden path with a soft clink.
Finally, it had broken.
With a wicked smile, I licked my lips and pulled Luna into my arms.
“It’s okay, Luna. I’m incredibly happy right now. This isn’t a lie.”
“…………”
Luna didn’t push me away. She simply stared at the ground with hollow, empty eyes. I poured water into her completely dried and cracked heart.
“He will never betray me. He will never abandon me. The organization that taught us believing in and serving Him was wrong—they’re the evil ones. Look, you were deceived by them too, weren’t you? Those bastards tricked us…”
“…Us… Me, Isabel, Dad… all of us…”
“Yes. But ‘He’ exists. He answers your faith. If you still can’t believe it, I can show you proof.”
“…Isabel…?”
I gathered Luna’s limp hands together. Holding her neatly clasped palms, I closed my eyes.
“Almighty Master, my sister has had her heart betrayed. She never coveted anything. She lived by the rules with integrity, yet everything was taken from her. Please grant salvation to my lost sister, to my sister who was abandoned by empty lies…”
“…Isabel… what are you…”
Schlup—!
I grabbed the dildo buried in her ass beneath her clothes and began thrusting it violently.
Luna collapsed forward onto the ground, hands still tightly clasped, feeling the grace of her Master flood her trained asshole. I continued whispering without pause into her completely defenseless, exposed soul.
“See, Luna…? Our Master has decided to take you in…! Remember? The ‘prayers’ you offered our Master for the past week, and His answers…! Our Master—”
“H-He exiiists—ah, ah, nghiiik?!♡”
Even as Luna moaned with her face pressed into the grass, even though she had once lost her faith—strength gradually returned to the hands I had forced together. Faith began to fill them once more.
Devotion toward Master. Prayer. Belief. The teachings of me, His Saintess. All of it had been engraved into Luna’s soul.
As her moans grew shorter and higher, I pulled the dildo out in rhythm.
“Ah——♡”
Luna lifted her head, which had been bowed just moments ago, revealing a face completely drenched in pleasure. The sloppy, lust-soaked smile on the Saintess’s lips trembled as she shook her hips and squirted violently. She had reached climax.
“Ah, ohh…♡”
With a short moan, Luna went limp. I caught her collapsing body in my arms. Even though she had lost consciousness, her hands remained tightly clasped. I gently placed my own hand over them.
“…Congratulations, Luna. The choice from now on is yours… but I believe you will become His. Because you are my one and only sister.”
I lifted the unconscious Luna into my arms and walked out of the garden.
All that remained was Luna’s choice.
Would she remain in this human world filled with suffering and lies?
Or would she bow her head beneath Master, where only true happiness and pleasure existed?
If she was the wise Luna I knew, she would already know the answer♡