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English
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Published:
2025-07-18
Completed:
2025-07-18
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5,850
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4/4
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23
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Skill UP

Summary:

Raidou takes a break from his work in the capital to explore his desires with a seemingly normal woman in the Red Light District.

Notes:

Heya! This fic has some themes of prostitution and that sort of thing, just warning you. If that makes you uncomfortable, then I don't mind if you don't read. Really, don't force yourself to read this fic. It's fine.

Chapter 1: Vitality

Chapter Text

After receiving permission from Satake the gang leader in the bathhouse, Raidou took the path past the gangsters, through the street and over to the Red Light District. He could see the red glow of an Aril Rift in the distance, and though he had only intended to meet with the girl at the front of the district and get the hell out of that disgusting place, he decided to go deeper within, drawn to the red glow of the rift. Gouto looked up at him, tipping his head to the side curiously. 

I won’t stop you,” he said, sitting back and licking his paws. “Just be on your toes.”  

Raidou nodded, taking that into consideration as he reached his hand for the rift. 

Once the demons within were slain, he breathed a sigh of relief, though it was short lived. Completing the rift meant that he was back in the oppressive, disturbing surroundings of the Red Light District. He could see ladies standing in front of some of the buildings. He meant no disrespect when he ignored them, but he wanted out of this place as soon as possible.

“Hm, what an unusual attire for this place,” a voice commented from aside him. 

He turned around as quick as a whip, startled by your voice, but not completely surprised. He doubted he would get this far without anyone taking notice, so he knew it would only be a matter of time before his presence in this place was questioned. 

But you were… well, at first glance, you were just a pretty face. You smiled at him, dressed in a pristine, flowery yukata that fit your body a little too well. 

“Hmm,” Gouto-douji peered up at you, looking every part the ordinary cat that he pretended to be. “Now, what a pretty face. Say, Raidou, do you sense it, too? This is a chance to increase your stats .”  

Well, now his interest was piqued. Raidou’s gaze met yours. 

“My, what a handsome face,” you said, smiling courteously. “And in a place like this, no less?” 

Raidou wasn’t sure what to say. He wasn’t a man of many words, and was certainly speechless in a situation like this. So he fell back on his detective skills, taking in your appearance and noting down things like your hair, tied back and falling down in a messy bun over your shoulders, and the slight scars that were just barely visible on your collarbone. An occupation like yours is certain to come with danger. 

“But someone like you is here for just one reason, right?” you said, tipping your head to the side, that sweet smile plastered on your face. 

“If you spend some time with her, you might improve your vitality ,” Gouto said, “But that’s entirely up to you. We’ve still got this Red Cape business to deal with, and—” 

Raidou nodded, taking a step forward, his cape swaying in the slight breeze. You slid the door open and led him inside, to a big, plush futon in lightly-colored bedding. You loosened your yukata and gestured for him to undress as well, and he stripped off his cape, though he hesitated at taking off his gear. He was certain the demons wouldn’t jump on him there, but he was concerned. He had to stay on his toes, after all, with all the trouble in the capital as of late.

“Come on, I won’t bite,” you said with a wink, “Unless you want me to.” 

He unbuttoned his pants, taking a deep breath before he undressed. You marvelled at the size of him, his cock thick and hard in your hand. Your face flushed. 

“Oh, my. You’re quite the stud,” You winked and stuck your tongue out, lapping at the weeping head of his cock. He let out a soft grunt, watching mesmerized as you suckled him gently, taking your time to savor his taste. You worked your hand up and down on him as you licked and teased the crown of his cock, licking away the precum that came bubbling out of his slit.

As you continued, his moans increased in volume and he clutched the bedding in his hands as he started to lose himself to the deliciously sinful sensations. His hips twitched up into your grip. His body was coated in sweat. He couldn’t resist your charms, not with the way you were making him feel. 

In his time as a Devil Summoner, he hadn’t put much thought into simple pleasures like this, focusing solely on his training and the thrills of fighting demons. But this was an entirely different but not unwelcome thrill. Your hand around him felt like bliss, more than the sensation of culling the demons from Aril rifts or the dark realm. 

“Aw, aren’t you cute? You should see the look on your face,” you teased, starting to move faster on him. You took your free hand and traced his jawline, subtly pulling him closer until your lips met his. 

Raidou wasn’t sure how he got himself into this, but he certainly wasn’t upset about it. He could feel a pressure building, pleasure climbing higher like milk in a pot, bubbling up and threatening to overflow. His breaths hastened, burning sweetly like the smell of wood smoke.

“That’s it. It’s okay, you can come for me,” you purred, looking up at him with bright, lustful eyes. 

He couldn’t hold back any longer. He let out a groan and covered his mouth with his hand as the world around him seemed to fade into the pulsing molten pleasure down below. He burst in your hand, making a mess of it and your body, streams of his essence painting your tits and stomach. His body trembled through the whole thing, until he could finally breathe again and the world stopped spinning. 

“I’m sorry,” he whispered, seeing the mess he had made of you. He had never had such an explosive climax in his life.

“Sorry? This is what I wanted,” you cooed, winking at him. You fetched a towel from beside the bed and started to wipe yourself down, but he took it and finished the job. His cheeks flushed as he touched your naked body, but he managed to get through it. 

“So, how much do I owe you?” he said, thinking about the yen he had earned through his fights in the dark realm. He couldn’t afford to keep coming here, as much as he wanted to feel this pleasure again. It was a breath of fresh air, when his duties as a Devil Summoner forced him to focus on growing stronger and pursuing the truth. 

“Oh, nothing, this time,” you winked, “Just consider it a gift from an admirer.” 

Raidou could feel the difference. Indeed, his vitality had improved by at least one point. Gouto was correct. He felt odd about the whole thing, though. He never expected to be drawn into this place, doing such things with you. You were alluring, mysterious, drawing him in with your seductive charms. There was surely more to you than that, but he was too dazed from his climax to think about it. 

You handed him his clothes as he started to get dressed. You gave an odd look as you saw the tubes he usually hid beneath his cloak, though you didn’t question it. You merely smiled, kissed him on the cheek, and whispered, “Come back sometime soon, okay? I’d gladly let you warm my bed again.” 

Once fully dressed, he thanked you, tried to offer you some yen at least for your time, and went on his way. He emerged in the Red Light District with his cheeks burning as red as the name suggested. How was he supposed to go on, knowing what he had just done? How could these people be so casual about it? It was obvious to anyone walking by what had happened. As he took the trolley back to the agency, his thoughts lingered on you. 

Admirer? You had said as much, but did that mean you knew of him beforehand? Had his reputation started to spread through the city? That could be a good thing and a bad thing, considering what he was up against.

Well, how did it go?” Gouto asked beside him, startling him. The cat had at least had the decency to give him some privacy. “I can sense it. That little minx helped you increase your vitality , huh? Well, in any case, it’ll help in our work. Perhaps you should come back sometime, and see what else might happen if you do this again. At the very least, she seems helpful.”  

Raidou kept his response to himself, knowing that anyone walking by would just see it as him talking to himself. He wasn’t against returning to you for more, but he didn’t exactly want to waste time when he needed to focus on finding Kaya and more leads on the Red Cape case. With his newly gained info in mind, he returned to the agency, ready to give a full report. He left out the part where he made a stop in the Red Light District. Narumi probably didn’t need to hear about it, anyhow.