The Tenshukaku bedroom on the top floor of Mugenrou was like a furnace of hedonism.
The heat generated by the five men and women entangled on the highest quality silk futons made the night in Yoshiwara burn even hotter.
"Haah… haat! Akira-san… it feels so good…!"
Mitsuri let out a heated moan as she threw her arms around Akira's neck. Her pure and voluptuous body undulated in time with Akira's movements, and with every shift, the sweet scent of cherry blossoms filled the room.
"Mitsuri, you look even more beautiful today."
Akira kissed Mitsuri on the forehead, savoring her lovely reaction. A pleasure mixed with a desire for conquest and deep affection enveloped his entire body.
"Master, please love me too… please…."
Daki, who was beside him, grabbed Akira's arm and pleaded.
The arrogance of the past was nowhere to be found; she looked only like a submissive creature desperate to be chosen by her master.
Akira grabbed Daki's chin and kissed her roughly.
"Mmm… mmmph…! Ma, Master…!"
Daki's body arched like a bow. Perhaps thanks to Tamamo's education, her technique was beyond imagination. Every flick of her tongue contained a desperate effort to please Akira.
"Master~ You're putting in quite the effort today, aren't you?"
Shuten laughed playfully as she climbed onto Akira's back. Her alcohol-drenched body was hot, and her scent, like fruit wine, stimulated his nose.
She nibbled on Akira's earlobe and whispered.
"Satisfy me too. I've been dreadfully bored lately, you know?"
Akira responded to Shuten's provocation and laid her down on the bed. The union with Shuten, a true demon, was rough and wild.
The bed shook as if it would break, and the rough breathing of the two filled the room.
"Fufu, Master. The night is long. Please, enjoy yourself slowly."
Tamamo watched the entire scene and smiled gracefully. She was in no hurry.
It was fine to take things slowly while enjoying the sight of Akira wandering through the labyrinth of pleasure she had designed. After all, the night was very long.
At times she prostrated herself at Akira's feet to lick his toes, and at other times she leaned against his back to appreciate the cries of the other women; Tamamo acted like a maestro conducting a Demon King's banquet.
Of course, she participated herself, sometimes being pinned beneath Akira and other times riding him like a horse.
A frenzied banquet. Within it, Akira savored his authority and pleasure as the Demon King, ruling over the night of Yoshiwara.
Eventually, the storm-like intercourse passed over the Tenshukaku of the top floor of Mugenrou.
The intense heat subsided, and the room was filled with a languid and decadent air.
Nude bodies soaked in sweat were tangled atop the premium silk futons, and the dim moonlight seeped through the window slats, illuminating their silhouettes.
"Whew…."
Akira, wearing a yukata loosely, held a long tobacco pipe and exhaled white smoke.
It wasn't tobacco, but the smoke of medicinal herbs—he was smoking herbs known to be good for stamina as if they were tobacco.
In his arms, Mitsuri was nestled, breathing softly in a deep, exhausted sleep.
Her pink cheeks were still flushed red as if her excitement hadn't faded, and a happy smile was etched on her lips.
"Master, we have brought a drinks table."
At that moment, the door opened quietly. Hinatsuru, Makio, and Suma entered.
They had been excluded from providing sexual service to Akira, but instead, they had been thoroughly trained to serve as attendants.
The three women carried trays with top-tier snacks and alcohol, cautiously approaching and kneeling around Akira.
"Right. Come here and pour a drink."
At Akira's word, Hinatsuru bowed politely and approached.
"Yes, Master. May your noble body be in peace."
Hinatsuru, with practiced skill, picked up a thinly sliced piece of sea bream sashimi with chopsticks and brought it to Akira's lips.
The hands that once identified poisons and moved covertly as ninjas were now dedicated to the delicate service of placing food into their master's mouth.
As Akira accepted the sashimi, Suma, who was beside him, quickly lifted a bottle and filled his cup.
"Master, this wine is the most precious 'Hyakukashu' (Thousand Flower Wine) in Mugenrou. It is sweet and will surely suit your taste."
Suma leaned her chest slightly against Akira's thigh and looked up at him with eyes full of blind affection.
When Akira finished the drink and set the empty cup down, Suma giggled happily and poured again.
"Master, you've sweated quite a bit. Let me wipe it for you."
Makio brought a warm towel and began to carefully wipe Akira's neck and chest.
The sight of her—once possessed of a loud and rough personality—now so submissively and devotedly wiping a man's sweat was almost jarring in its level of dedication.
"You three have a drink too. You're working hard late at night."
When Akira spoke with feigned generosity, the three women showed expressions of deep emotion.
"Giving alcohol to lowly ones like us…."
"It is an honor, Master."
Though they had not shared a physical relationship, mentally, they already belonged to Akira.
They accepted the cups Akira offered as if they were treasures, becoming completely immersed in this fallen peace.
Watching this, the naked Tamamo fanned herself and laughed.
"Fufu, look, Master. The proud kunoichi have now become pets who live and die by a single touch from their master. Is this not a different kind of sense of conquest?"
"You're not wrong. It's quite comfortable."
Akira nodded as he accepted a grape peeled by Daki. Daki was also massaging Akira's legs at his feet like a docile cat after the intercourse ended.
"Aww~ give me more alcohol. I still haven't had enough~"
Shuten was already heavily drunk and was pestering Suma to give her the entire bottle.
The warmth of his beloved wife Mitsuri, the service of the submissive Daki, and the extreme hospitality from the wives of an enemy commander.
As the king ruling the night of Yoshiwara, Akira leaned back and enjoyed his drink with the composure of a victor.
Of course, it wasn't just them; all the courtesans of Mugenrou came in to entertain Akira.
A situation where the most beautiful women in Japan—perhaps even the world—danced and leaned against him to serve him.
"It truly feels like being an Emperor."
"Hehe, couldn't you become something even greater than an Emperor?"
It felt exactly like a banquet and reception for an emperor. Receiving such treatment in Mugenrou, Akira began to truly feel the weight of his position.
It wasn't a bad feeling.
It felt like a reward for all his hard work.
"But are you really not going to have a taste? These are the children I personally trained. You seem interested in the other courtesans, yet you won't touch the kunoichi?"
Tamamo spoke as she lifted Suma's bouncing chest. Akira glanced at them.
"I am curious. Well, I'm not going to devour them just yet."
Akira grew interested because Tamamo bragged so much. He immediately reached out and squeezed the breast of Hinatsuru, who was right below him.
"Ah, more, please enjoy me more, Master♡"
Hinatsuru acted coquettishly and looked happy at Akira's touch.
However, Akira's gaze was like someone evaluating a product.
Except for the valley between their legs, Akira nodded as he touched their breasts, hips, and waists here and there.
Even to him, who had held countless women, Hinatsuru was certainly a great beauty.
He followed up by evaluating Suma and Makio as well.
"Haah, Akira-sama♡!"
"More, please enjoy Suma more♡"
"That Tengen fellow, didn't he choose his wives based on their bodies? I heard the head of the clan, his father, chose them, but that man sure had a good eye. The courtesans of Mugenrou have all reached the top tier in face and figure because Tamamo trained and managed them, but to think their natural state was this good. Well, you are treating them well as I ordered, Tamamo. Since they are my people for now, even if only temporarily, I must take good care of them."
Akira marveled while critiquing the three. To think their natural constitutions were like this.
"Since you said you wouldn't bed those three, how about these courtesans here? These are the girls I raised, and they always keep their bodies clean after work. I am performing a procedure that temporarily reverts their physical time to before they lost their virginity."
"Hah, then in theory, those girls are immortal?"
"Yes. Since they are already servants for Master? And they all gave their voluntary consent. As a woman, isn't it a natural wish to live forever in a beautiful state?"
"That makes sense. In short, those girls have the mental experience, but their bodies are clean while retaining their skills? Today is truly a feast."
Even the Servants could not handle his massive libido. Tamamo and Shuten were laughing, but in truth, their backs ached significantly and their legs were trembling. In other words, they were acting tough.
Daki also felt as if her waist were about to break, but she was trying her best to smile through the pain with her experience of over a hundred years as an Oiran.
In a way, maybe the courtesans of Mugenrou were meant to help Tamamo handle his lust.
Hinatsuru, Makio, and Suma flushed and marveled as they looked at the undressed Akira.
Seeing that massive, club-like thing, they watched the courtesans who would handle him with envious eyes while self-soothing.
This was the feast enjoyed by the ruler of the night, a banquet where everyone was soaked in pleasure and happiness.
This was the Entertainment District.
At the same time, Demon Slayer Corps Headquarters.
Uzui Tengen's expression was more serious than ever.
"Damn it… no contact. All three of them."
Veins were popping on his flashy forehead.
Contact had been cut off simultaneously with the three wives he had sent to infiltrate Yoshiwara: Hinatsuru, Makio, and Suma.
"The crows aren't coming back either. This isn't just a simple accident. Those guys have definitely made a move."
Tengen clenched his fists tight.
Akatsuki Trading Company.
The largest trading firm in Japan, which has recently surged and taken control of Yoshiwara.
He had sent his wives to infiltrate based on information that an Upper Moon demon might be hiding there, but the results were the worst possible.
"Could it be… they were caught? No, that can't be. They are excellent kunoichi. There's no way they'd be caught so easily…."
He tried to shake off his anxiety, but the ominous feeling wouldn't leave.
"I can't wait any longer. I'm going myself."
Tengen made his decision. He would confirm his wives' safety, and if it was the work of a demon, he would execute it flamboyantly.
There was no time to find new female members to infiltrate the red-light district, nor time to gather information through infiltration.
Just then, he felt a presence behind him.
"Uzui-san! Is something wrong?"
It was Tanjiro Kamado. Beside him were Zenitsu Agatsuma and Inosuke Hashibira.
They had just finished their recovery after the mission with Rengoku.
"You guys…."
Tengen pondered for a moment. This was a dangerous mission where an Upper Moon demon might be present.
However, they had experience facing Upper Moon Three along with Rengoku and had defeated Lower Moon One. They weren't bad as additional combat power.
"Fine. You lot, you're coming with me to Yoshiwara."
"Yo, Yoshiwara? You mean that red-light district?!"
Zenitsu shouted with sparkling eyes.
"Shut up! We're not going to play. My wives infiltrated the place and I've lost contact. This is a rescue mission."
"Wife…? You mean plural? There's several of them?"
Tanjiro's eyes went wide.
"Yeah. We save them, find the demon hiding there, and flamboyantlly crush it. That's the goal of this mission."
Tengen's voice was filled with resolute will.
"Yes! Understood!"
Tanjiro answered Tengen's command vigorously.
"He has three wives!? What is with this playboy!? I don't even have one!"
Zenitsu, naturally, whined from the side.
"Yoshiwara? What kind of place is a red-light district?"
Inosuke, naturally, did not understand the words at all.
And so, toward Yoshiwara, the banquet hall of the Demon King, the new forces of the Demon Slayer Corps began to move.
The curtain rose on a desperate battle that would take place in the red-light district where flashiness and darkness coexist.