'Doing it in the ass wouldn't count as sex, right?'
'Oi, weirdo system? Are you listening?' he asked mentally.
No answer came from his useless system, just as he expected.
This damn cheat had never responded to a single one of his questions.
The missions that used to pop up daily were declining more and more.
Take today for example: he hadn't received a single mission.
Since Kanae was the reward herself, he probably wouldn't get any missions from her even though she was in the body of Nayuta now.
Meanwhile, Mitsuri, Shinobu, Aoi, and his mother all had ongoing missions still available.
If he was guessing correctly, or rather hoping, he would have to complete those first before new missions from those four would appear again.
Honestly, he wasn't even sure.
It was just speculation.
'Shit. I need to calm down… Let's just have milk and call it a day. There's also a meeting with Kagaya tomorrow…'
Dismissing the crazy impulse to train his mother's ass — likely because he had overdone it and let his desire run wild for hours — he lay down beside her.
Both of them pulled closer, bodies pressed together.
Kie's bountiful chest faced his face, as if inviting him.
"Tanjiro's hungry again?" she asked curiously.
Surely her child had a big stomach.
She had fed him for hours earlier, and yet he still wasn't full.
Not that she was incapable of producing milk.
As a mother, she was simply happy that her child would grow healthy because of her milk.
Tanjiro, already sucking on both of her lactating nipples at once, hummed softly in response, relishing the sweetness of her nutritious milk.
Although her milk was purified instantly within his body, the leftover nutrients were still excellent for his bones.
He could feel even a small power-up through his unnatural senses and absolute control.
Regardless, he never drank for that reason. He drank because of the love he had for his mother's milk — not caring how addicted he had become.
If he could, he would never let go of her nipples.
That was how deeply he had fallen into the sea of milk.
Such was the strength of his devotion.
Though he knew he had to set some limits.
That's why after only an hour or so of drinking, he reluctantly released her breasts and stopped.
Looking at her erect, dark nipples, he noticed they were a bit swollen. A strong, mind-inducing aroma rose from them.
'They will recover shortly…' He wasn't worried.
She was a demon, no matter how diluted her blood had become.
Her regenerative powers would heal the swelling in no time.
Once both of them were satisfied, he dressed himself and then helped Kie dress.
Afterward, he put a clean mattress and bedsheet on the bed. Finally, he lay down and wrapped his body around his mother as usual.
The softness and comforting sensation of her body was the best thing to sleep with.
'I guess I'll delay searching for Tamayo… Let's put my trust in Shinobu first.'
With that last thought, he stopped thinking and let his body rest, falling asleep.
Two hours later~
...
On the futon, Shinobu's eyes flickered open right on time, as usual. She was the second earliest riser in the mansion after Yoru-san. The third was Aoi.
Her half-lidded purple gaze landed on the sweet girl sleeping beside her. Their hands were still locked together from the entire night.
A small smile appeared on Shinobu's face as she looked at the girl's adorable sleeping expression. A desire to caress her face rose, but she held herself back.
'What a familiar feeling… I used to sleep with Nee-san like this in the past. I never thought I'd experience such a nostalgic feeling again… and at this age no less…' She gently separated her hand.
Careful not to disturb Nayuta, Shinobu slipped out of the futon and let the poor girl sleep as long as she wanted.
She had lost her mother recently and had been moved here. She deserved some rest.
'I need to get ready. There's a meeting, training, research, and other things to take care of… Hah…'
Fixing her bedhead quickly, she decided to take a short bath.
Opening the window slightly, she saw fog enveloping the surroundings. It wasn't too dense, but the dry air and early morning chill made the weather just noticeable enough.
'At this rate, snow will fall in a week or two.' she thought.
Exhaling softly, her breath turned to mist the moment it left her lips.
'Grandma's tea is all I need to start the day, mm…'
She shut the window and stepped out into the hallway, heading for the kitchen.
As a Hashira, she had already mastered Total Concentration Breathing: Constant, so changes in weather no longer bothered her.
Her resistance to heat and cold had improved drastically over the past few years.
Total Concentration Breathing was truly a blessing for Demon Slayers.
Without it, even experienced Hashira would have struggled against Lower Moon demons.
It had taken her almost two years to master it. Her late Nee-san had mastered it in less than a year. Little Kanao was also on the verge of mastering it after just a little more than a year of training.
The poor girl had given everything to learn Flower Breathing and Total Concentration Breathing after their Nee-san's death.
The fruits of her hard work were finally showing, especially after Tanjiro took over her training and accelerated her growth every day.
'She will become a better swordswoman than me…' Shinobu knew it.
Insect Breathing wasn't truly powerful.
It was just a style she had created to support her poison techniques after failing to master Flower Breathing — mainly focused on stabbing and thrusting.
Her Nee-san had been too amazing. She recalled.
Nee-san had mastered all seven forms of Flower Breathing in mere months and became Flower Hashira at just 14.
And now, with Kanao's perseverance and hard work, she was bound to reach Hashira rank one day.
She would definitely fly like a butterfly.
After a few steps, Shinobu reached the kitchen and found Yoru-san sitting near the hearth, drinking tea.
"Good morning, Grandma." She greeted with a smile and joined her side.
Grandma Yoru noticed Shinobu and replied with a slight nod. A happy smile spread across her wrinkled face. "Thank goodness you came back safe. If something had happened to you, those little ones would have been devastated. This poor old lady would have probably passed away from grief too."
She patted Shinobu's head gently.
Hearing Grandma's words, Shinobu's eyes softened, but her lips soon curved into a wry smile. "That's impossible now, Grandma… because there's a monster by our side."
The old lady let out a small laugh at her honest words. "I see…"
'A monster, she says…'
As a woman who had served in the organization for decades, she had seen over a thousand Demon Slayers die in battle or retire in hopelessness.
She had seen children's corpses mutilated beyond recognition.
Happy families destroyed overnight.
Her own family had been eaten by demons — her son, her granddaughter… everyone.
She knew misery like the back of her hand.
The pain had seeped deep into her old bones, strengthening them instead.
In the entire organization, she was the only one past eighty. Others had died or retired long ago.
And only because of her vast experience — or perhaps a gut feeling — she could somehow tell that the boy called Tanjiro was clearly special.
There was something unique and overwhelming about him that she had never sensed from anyone before.
Neither the previous Stone Hashira nor the top Flame Hashira of her time had given her such a mysterious feeling.
Now they had defeated an Upper Rank demon that had never been slain in her entire life.
He had similarly killed a Lower Moon on his first day and defended his family against a powerful demon.
She wasn't sure, but her old instincts told her that the demon Tanjiro fought to protect his family must have been an exceptionally strong one.
'Hoho… What a child. He's like divine aid sent from the heavens.'
A few minutes passed~
Shinobu spent some time with Grandma and finished her morning tea before standing up to leave.
"I'll go take a bath then, Grandma…" Shinobu said after helping bring vegetables from the storage for Yoru-san.
Once done, she headed to the bathroom.
Grandma Yoru looked at the door and recalled something. Not minding it, she simply laughed to herself. "Hoho~"
Just a few seconds later, a loud, shameful cry echoed from the bathroom.
"KYA—!!"
A panicked Shinobu rushed out of the bathroom and up to the second floor, her pale face flushed with embarrassment and fear.
A second later, a tall boy emerged from the bathroom, drenched in water droplets. He had a towel wrapped around his waist, though his erect dick still protruded noticeably.
Obviously, this boy was Tanjiro.
He ran a hand through his long, wet hair and could only chuckle lightly at Shinobu's reaction. 'Seeing my morning wood scared her so much, huh. That's cute, haha.'
Shaking his head, he headed to his own room, his Selfless State active as ever — the reason she hadn't detected his presence earlier.