That day, Kokushibo arrived at Mount Keishin as he always did, his presence silent yet imposing, like a shadow that had long since claimed the land as its own. The air was calm, the forest undisturbed no trace of demons lingering nearby, for none dared approach a territory guarded, knowingly or not, by Upper Rank One himself.
Upon seeing him, Yunxiong immediately bowed his head in respect, his posture rigid with both reverence and unease. Though years had passed, the instinctive fear toward his ancestor had never truly faded.
Under Kokushibo's subtle protection, the family's life had changed drastically. Their once fragile dwelling had been replaced by a sturdy and spacious home, their livelihood stabilized, and Yunxiong himself had expanded into small-scale trade, ensuring their continued prosperity.
"Ancestor," Yunxiong began cautiously, "the Demon Slayer Corps has visited recently…"
Kokushibo did not react outwardly, but his six eyes shifted slightly, focusing.
"They wish to recruit Ichiro and Muichiro," Yunxiong continued, his voice lowering. "They believe the boys possess exceptional talent."
Rather than anger, a trace of contemplation surfaced within Kokushibo.
So… the timeline still converges.
Even with his interference, fate had not completely unraveled.
"What was their response?" Kokushibo asked calmly.
"Yuichiro refuses," Yunxiong replied. "He wishes to remain with the family. As for Muichiro… he hasn't spoken openly, but I believe he feels the same."
There was hesitation in Yunxiong's tone fear, carefully restrained. He understood what Kokushibo was, and the possibility that the boy's involvement with demon slayers might provoke something irreversible weighed heavily on him.
Yet Kokushibo remained silent.
If one of his descendants entered the Corps…
That would not be a threat it would be an opportunity.
A piece placed within the enemy's ranks.
But that choice… would not be forced.
At dinner, the atmosphere shifted entirely.
The moment Kokushibo appeared, the two boys ran toward him without hesitation, their expressions bright with familiarity and trust.
In their eyes, he was not a demon.
He was family.
Kumoo had long introduced him as a distant relative an explanation Kasumi accepted without doubt. To her, Kokushibo was simply an unusual, quiet elder who occasionally visited.
Only the two boys knew the truth.
And even that had come by accident.
It had happened on a night when Kokushibo, still in his true form, spoke privately with Kumoo outside the house. Believing the household asleep, they had not concealed their presence carefully enough.
Hidden nearby, Muichiro Tokito and Yuichiro Tokito had been watching.
Their fear gave them away.
In an instant, Kokushibo's blade had cut through the cover concealing them, revealing their trembling figures beneath the moonlight. His six eyes locked onto them, cold and unreadable, and Kumoo immediately fell to his knees in terror, begging for mercy.
Yet Kokushibo did not strike.
He simply beckoned them forward.
To his surprise… they obeyed.
Muichiro clutched his brother's hand tightly, his voice trembling as he spoke. "Grand… Grandpa…"
Yuichiro stepped in front of him, defiant despite the fear in his eyes. "It was my idea to come out," he said firmly. "If you're angry, blame me."
Kokushibo studied them for a long moment before speaking.
"I am a demon," he said plainly. "One that consumes humans."
They nodded.
No denial. No attempt to flee.
Only acceptance.
"And yet… you would still call me 'Grandfather'?"
The answer came without hesitation.
"Grandpa is a good person," Muichiro said softly. "You've never hurt us."
"And we won't tell anyone," Yuichiro added.
That night, Kokushibo made a decision.
He let them live.
Not out of mercy alone… but because, somewhere along the way, those words had begun to matter.
Back in the present, the dinner continued peacefully. Kasumi stepped outside to wash the dishes, leaving the others gathered inside.
It was then that Kokushibo raised the topic.
"The Corps wishes to recruit you," he said, his gaze settling on Muichiro.
Yuichiro immediately objected. "He's not going," he said sharply. "We don't need anything from them."
Muichiro hesitated.
His silence said enough.
Kokushibo leaned forward slightly, his voice calm but piercing.
"If they raise their blades against me… whose side will you stand on?"
The question froze the room.
Muichiro looked up, then reached out and grasped Kokushibo's sleeve without hesitation.
"I won't let anyone hurt you," he said.
There was no doubt in his voice.
Not long after, the choice was made.
When Amane Ubuyashiki came to escort him, Muichiro departed with the Corps.
Just as fate demanded.
Within two months… he would rise to the rank of Hashira the Mist Pillar.
A prodigy, untouched by hesitation.
Days later, Kokushibo was summoned.
This time, there was no assembly.
No Upper Moons.
Not even Nakime.
Only silence and Muzan Kibutsuji.
The absence itself was unsettling.
Kokushibo stepped into the dim space, immediately sensing something was different.
Muzan, once again in the guise of a woman, stood quietly, her expression unreadable.
"Kokushibo," Muzan said slowly, "have you noticed it?"
"A presence… watching us."
Kokushibo's gaze sharpened.
So… it wasn't just him.
"Indeed," he replied. "I have felt it as well. A gaze… constant, yet impossible to trace."
Neither of them understood it.
Yet both felt it.
And that alone made it dangerous.
Muzan shifted the topic abruptly.
"The Blue Spider Lily… will bloom soon."
Kokushibo lowered his head slightly. "Then I offer my congratulations."
Outwardly, nothing seemed amiss.
But inwardly
Everything had changed.
Muzan could no longer see him.
No matter how she reached, no matter how she probed his consciousness remained sealed.
Untouchable.
Her control… was gone.
Two days earlier.
Within a hidden laboratory, Tamayo stood calmly before him, holding a vial of newly completed medicine.
"It is finished," she said. "An improved formula. Its effect is immediate… but its duration is limited."
"One year," Kokushibo confirmed.
Tamayo nodded.
Without hesitation, he drank it.
The moment it entered his system, something fundamental shifted the invisible chains binding him to Muzan's blood… snapped.
Freedom.
For the first time in centuries.
Now, standing before Muzan once more, Kokushibo felt it clearly.
The absence.
The silence where control once existed.
And Muzan… felt it too.
She studied him carefully, calculation flickering behind her eyes.
Killing him would be the safest option.
But she could not.
Not easily.
Not without risk.
Because Kokushibo was no longer merely her subordinate.
He was… something unpredictable.
As the tension thickened, Kokushibo suddenly stepped forward and gently placed a hand over Muzan's.
"My lord," he said quietly.
His voice was calm.
Respectful.
Unchanged.
Yet beneath it
Something had already begun to break.