[Mental Regression, ABDL, Wetting, Sissification]

Due to the many efforts that Rhodes Island goes through to keep peace, there are many operators left to figure out what to do on their own. One of these operators was the young Ansel, an intern that had joined in an attempt to make his own abilities grow thanks to the much more experienced medical staff at the main facility.

Unfortunately, thanks to the aforementioned efforts, there were not many available on hand to teach him anything. Silence, the doctor in charge of many of the younger operators that had difficulties controlling their arts, gave him a suggestion however. Out of every single operator she had the pleasure of working with, there was one that she never touched outside of their first meeting. Nightingale, partner of Shining and Nearl, was not one to often venture out of her room since she always seemed to be… in a mood, so to speak.

“She’s very skilled at medical arts, but I would refrain from approaching her unless you’re with either of them. She has a tendency to lash out if you try anything.” Were the words that Silence had told him, the words ringing throughout his head as he went towards the strange operator’s room. He should’ve probably heeded her warning, but he was both curious and he hoped that she might actually have some advice for him. If she didn’t have anything, he’d just have to wait until somebody was free to teach him. And if she was able to teach him something, he could do his duties with greater efficiency. He might just save people, which was the entire reason he joined in the first place!

As soon as he reached the carefully locked door with ‘Nightingale’ labeled on the front, he knocked on the door just a few times. “Miss Nightingale? Are you in there?” He asked gently, waiting for an answer. Once he got none, he knocked a few more times to ensure that he had been heard. “Miss Nightingale! I was wondering if there were any quirks about medical arts that you might be able to teach me! I’m an intern here at Rhodes Island, and I want to be better so people can be saved!” He let his motives be heard, hoping that it would be enough to entice her to open the door to speak to him…

He waited and waited, until the door finally opened and a gentle pair of blue eyes peered out from the crack between the wall and the door. “...Ansel… right?” Nightingale quietly spoke as she opened the door further, letting him get a glimpse of her blonde hair as she stepped aside…

“Y-Yes! That’s me, Miss Nightingale! I-I was hoping if you could teach me what you know…” The white-haired intern repeated as he stepped inside, wearing his hopes on his sleeve…

Which did him absolutely no good once she put her hand on his head, causing a mild shock to run through him right before he passed out into her arms. “I’m sorry.” She muttered quietly as she closed the door behind him, locking it once more as she carried him off to the bed with a somber look on her face…

---

By the time the young boy awakened once more, he felt powerless. As if he had slept for an eternity, and his muscles were only now starting to be useful again. It was like his limbs were still fast asleep despite his mind being wide awake, and it bothered him to no end as he tried to move…

Once he saw those gentle blue eyes above him, he realized that something was dangerously wrong. “M-Miss… Miss Nightingale… W-What are you…” He muttered, a little bit of drool running down his chin thanks to his sleeping body.

“Sit still.” She meekly muttered in the most commanding tone she could muster as she continued to rub his head with her slim hand. She didn’t want to hurt him, but she wanted him to understand that she had him exactly where she wanted him. If he did anything funny or disobeyed, she could pull that same trick again…

Ansel just looked up at her with sweat running down his head. “I-I don’t get it, what are you doi…” He muttered, only for his jaw to seize up as it hung open. His eyes started growing empty as he felt something within his head. Something warm, gentle, something that made it really hard to think…

“I’m glad you came, but…” The blonde medic started talking as her hand glowed, thanks to the medical arts she was currently using. “You shouldn’t have. I’ve been… longing for somebody to keep me company. Somebody that knows my issues and doesn’t want to leave me all by myself. Somebody that I can trust with all of my heart, just like Nearl and Shining…” She continued, carefully caressing her hand along the boy’s side as she dispelled the arts on her hand, having proven a point by freezing his thoughts…

The young man quickly started to blush, not truly realizing what she was implying… “I… I’d love to help, Miss Nightingale. I want to not just help people, but also other operators. If it means to be your secret keeper, then… I-I can keep any secret, promise!” He tried to appeal to her caring side…

Only to then look down and notice something rather embarrassing. Namely the fact that while he had been asleep, she had taken the time to redress him in something more appropriate. Namely a copy of her own outfit, something that would no doubt suit the strongest operators around. And he both wasn’t one, neither was he a girl that could properly fit it… “M-Miss Nightingale…?”

“Ssssh…” The blonde woman hushed him gently with one of her fingers as she slowly smiled. “I’m glad, Ansel. I knew you were the one…” She quietly chimed as her hand started to glow once more, prompting the boy to let out a confused moan. “Unfortunately, I… I don’t feel comfortable around men quite yet. Not even our Doctor. I need… I need you to be something a little more feminine, then I can teach you…”

His moan gradually grew into a couple more as she used her arts to play around with his head. His eyes became dimmer as she carefully snaked her way through his inner thoughts, being cautious not to break anything important as she picked at the core of his mind. Where he kept his sense of self…

Just as Nightingale was about to yank out his understanding of being male, so he wouldn’t feel inadequate and embarrassed in her clothes, she felt her hand spasming thanks to her sickness. “S-Steady, steady…” She muttered to herself, hoping to keep her arm from ruining what would’ve been an easy operation… instead, she noticed that she might’ve screwed something up as the boy’s face suddenly shifted from a pleasured one to a relieved one…

Before she did anything worse, she yanked out his understanding and hoped for the best. “Open your eyes, Ansel…” She whispered as she ran her hand along his face, letting the dim color on his eyes fade as he stared straight into hers…

And not even a second later, he began to drool and giggle like a child. “Mama..?” He muttered, blinking as he babbled incoherently. She had done a horrible mistake, and had dug too far into his mind. Now she wasn’t going to be able to fix that issue…

“Oh, Ansel…” Nightingale muttered, already feeling regret for her action as she slowly but surely hugged him. She felt guilty over what she had done, but at the same time, now he was going to understand her. Not just that, but he seemed downright pleased to be in his new outfit, which was the entire reason she had dug around in his mind. If she hadn’t done it, he would still be nervous…

After having him sitting on her lap for a few moments, she noticed that her thighs were getting warmer. Not for any unrelated reason either, as she gently pulled him off her lap and realized that the spot was wet. She then looked down and realized why he had been so relaxed just a while ago, as she began to blush herself…

“Mama… Went pee-pee…” The regressed boy muttered bashfully as he covered up his crotch, afraid that his Mama might punish him for what he had done. He wasn’t aware of it, but her endeavor to mess with his head had taken him back to a simpler time… and back then, he clearly didn’t have the best life. If he was afraid of his mother for an accident like that, then…

Nightingale carefully rubbed the boy’s cheek. “It’s okay, Ansel. Just let…” The blonde woman paused before shaking her head, smiling a little as she continued. “Just let Mama handle it, okay?” She asked, and he nodded in turn, putting all of his faith in her…

She was happy that she had a few supplies laying around as she carefully removed his panties, the ones that she had specifically saved for such an occasion. Shame that they had to be ruined this early, but they could be washed. Once they were off, she motioned to the bed and invited the boy to lay down, so the next step would be easier…

Using the staff that she kept by her bed, she carefully pulled out a pack of diapers that she hid underneath. It was intended for her own use as prescribed by Shining thanks to her infected body, but if she had to use it for somebody else, Ansel would definitely be the one. After all, she had unintentionally made him a little child in terms of his mentalities, it was her responsibility.

“Up we go…” Nightingale whispered and her little boy giggled as she lifted his legs up, before sliding a clean diaper underneath his bottom. She carefully brushed his cheen as she pushed the midsection of the padding through his legs, snapping it shut using the wings once it was secured between his thighs. She gave it a little tug to ensure that it was clinging tightly and wouldn’t just slide off if enough strength was used, smiling once she was sure it wasn’t going to be an issue.

Ansel, now wearing a cute and fluffy white diaper to go with the dress that his Mama had given him, smiled from ear to ear as he hugged her. He sniffled just a little, bad memories trying to surface as he buried himself in her breasts. “Tanks, Mama…” His condition was arguably worsening thanks to the lisp he just developed, but his gratitude was sincere. He liked his cute new diapy and his Mama more than anything else in the world…

The blonde woman, never having experienced such a dependency before, slowly put her hand on his head as she rubbed it through his hair. “Of course, little Ansel… Mama’s here for you…” She muttered softly, never before having thought that being so nice and so caring towards somebody could feel so… good… The feeling was alien to her, and… she honestly wanted more.

Her hand slowly glowed as she started digging into his mind once more, hoping to enhance this strange feeling in her mind as she kept on smiling in an eerie fashion. All without regard for her little baby boy’s well-being…

---

“Nightingale? You’ve been in your room all day, it’s about time for you to go have a walk for fresh air.” The blonde Defender, Nearl, came knocking at her door hours later. She always showed up around this hour, following a schedule that Shining had made for them, just to ensure that their friend and ally had some contact with the outside world.

What she saw when she unlocked the door to the Medic’s room, however, caused her to flinch and lose her composure. She quickly shut the door again, locking it for her own safety. “I-I see you’re busy, I’ll… I’ll leave the two of your be…” The strong-legged Defender muttered as she left the two alone, hoping to unsee what had just transpired…

Laying splayed out on Nightingale’s lap was the young Ansel, but at this point he looked almost like the woman he was being spoiled by. His white hair had grown all the way down to his knees, and his features had grown ever more feminine to the point where he was like a mirror of his dear Mama. Not to mention that diaper around his waist had gotten quite wet since he had his last change, but this time it bothered neither of them. The only one it bothered was their uninvited guest…

“Mama? Who was?” Ansel asked as he slowly shited back and forth, yawning as his eyes fluttered between open and closed… He had gotten tired from how much his dearest Mama had poked around in his head, and all he wanted now was to sleep and be with her for all time…

Nightingale was about to say something, before she shook her head. “Nobody important.” She replied, carefully lifting her little boy up and giving him a kiss on the cheek. “Have you had enough fun today, dear..?” She asked, slowly running one hand through his hair as it gently glowed as to stimulate his mind in a positive way…

The young sissy nodded with a smile. “Mama’s super fun…” He drooled just a little as he wrapped his arms around her, yawning… “Ansel sleepy…” He muttered as he slowly closed his eyes, wanting to lie down with his beloved maternal figure. He didn’t even wait for her as he started snoring so cutely, a smile on his adorable little face...

A wish she echoed as the two of them laid down by one another, her smile remaining on her face. “Sleep well then, dear…” She kissed him on the forehead one more time as she closed her own eyes, drifting off to sleep alongside him.

While her motives might’ve been good, and what she had intended might’ve been a little… excessive… in the end, it turned out alright. She got a little boy that loved him from the depths of his heart, and he got to experience a better childhood, even if it wasn’t intended…

Now, the two could sleep peacefully at night, happy with their new life together.