What is a ghost?
In Roy's view, "ghost" has not detached from the concept of "human."
It is a conglomeration that gathers all kinds of "dark" emotions such as "humanity," "brutality," "cruelty," and "madness" and is amplified by Muzan's ghost blood...much like "Posthumous Nen" born from "obsession" and "resentment"...
Because of "not obtaining," after becoming a ghost, one must desperately compensate...
A momentary twitch of the nostrils, and he immediately "sniffed" out the scent of the "Doppelganger Ghost." Roy activated En and in an instant locked onto the position of the "Doppelganger Ghost," hearing its "inner voice" and "past" altogether...
Just like it said to Tanjiro in the original work..."Women must be eaten when they are 'young,' when they get older, they become ugly and hard to eat...."
Roy sharply detected the "profound inferiority" buried deep within the "Doppelganger Ghost's" heart.
'Because he was poor, old, ugly, and cowardly, he never married, nor did he ever hold a woman's hand, he could only secretly spy or even stalk some young girls...to relieve the repression deep within his heart...'
'It's better to...die than live like a walking corpse!'
"Sun Breathing: Second Form: Clear Blue Sky..."
The sword unsheathed, turned red, flames appeared...a blade light entwined with flames flashed across...
A muddy swamp suddenly appeared on the alley wall, and with a 'glug,' two ghost heads rolled down, along with a "Doppelganger Ghost" adorned with two ghost horns on its head falling to the ground...Roy unhurriedly pointed the sword at an angle, thrusting it into its mouth,
At a certain moment, his gaze concentrated, through the "Doppelganger Ghost's" scarlet eyes, he saw a pair of eyes!
The owner of those eyes sported a pair of blood-colored pupils, dressed like a "young master," wearing suspenders with a small suit, polished shiny little leather shoes on his feet, holding a book in both hands, standing in a luxuriously decorated yet still elegant study, browsing through data, with a few maids standing beside him...
'Muzan, perhaps?'
'Red Blade...those 'flower card earrings'...'
The two stared at each other through the "Doppelganger Ghost's" pupils, both momentarily stunned...
Roy first reacted, jet-black pupils suddenly "ignited" with two suns, penetrating straight through the "Doppelganger Ghost's" pupils, fiercely looking "inside"...
As Muzan came into sight, he saw "two suns," and with a "thump thump thump..." he took several steps back, the book in his hand was so startled that it flew away, and in terror, caught off guard, he fell to the ground!
'Sun... "Sun Breathing"... that swordsman... is Tsugikuni Yoriichi's descendant!'
"Bang~" The ghost blood belonging to "Muzan" within the "Doppelganger Ghost" exploded!
The entire "Doppelganger Ghost" was like a watermelon being struck, it burst open...
In the brief moment, the thread connecting with Muzan through ghost blood was completely severed!
Panel prompt...["Life Energy" +10...["Demon Index"] has been compiled...]
[Clone Ghost: D-level Demon]
[Constitution: 103 (Note: Ordinary human is 1)]
[Innate Blood Demon Art: Swamp Space (Note: Space-type ability, with the "Doppelganger Ghost" as the center, within ten meters can explore freely through "Physical Entity" (either walls or floor) and emerge, achieving "space crossing")...now extracted....]
[Innate Blood Demon Art: Clone (Note: Materialized clone, needs "corpse" as a reliance, split ghost blood to mold it) ...now extracted...]
"Poof~" [Eye of Truth] extinguished....
Roy sheathed the sword, "Escaped quite swiftly."
In the turn of thought, received two streams of information from the panel...
Underfoot appeared a swamp, and his body immediately sank underground, appearing again ten meters away, poking his head out from a corner of the wall... In this way, he sunk and emerged, continuously traversing through the streets and alleys using the swamp, silently familiarizing with [Swamp Space], moments later, escaped from the world of Demon Slayer, returned to the Hunter World...
....
"Young master..."
"Young master..."
"What happened to you?"
Tokyo.
Inside a certain luxurious mansion.
Seeing their young master fall, a few maids extended a hand to assist, arms straightened, but their heads were gone...
Muzan disguised as a "teenager," killing the maids with punches, sitting on the ground in disarray, clutching his chest and gasping for breath...it's been hundreds of years, ever since that swordsman with flame marks on his forehead died, he never felt such "fear" again as today!
Those 'flower card earrings'... that Red Blade wrapped in roaring flames...those "Great Sun pupils" piercing his chest...suddenly pulled him back to the bamboo forest when he first met Tsugikuni Yoriichi!
That night, the bamboo swayed in the wind, rustling....
He laughed at him being no more than an ordinary swordsman, he shattered him into over eighteen hundred pieces...
He said, "I am no longer interested in swordsmen using the Breathing Technique."
He asked, "What have you turned your life into?"
Muzan dares not forget...whether it is the Demon Slayer Mark...the Red Blade...even those earrings once worn by Tsugikuni Yoriichi, after hundreds of years, he still dares not forget!
"Nakime, convene an Upper Moon meeting, I need..."
"That swordsman...dead!"
The teenager's blood-colored pupils grotesquely protruded several veins beneath the savage demeanor!
He crawled up from the blood-stained floor, and thus spoke...this night, the night winds rose and clouds billowed, quite different from usual....
Evil ghosts feasting on humans, the Demon Slayer Corps hunting ghosts, in the varied corners separated by Upper and Lower Moon ranks, converging towards one place, as Ubuyashiki Kagaya listens to Gyomei Himejima chant sutras, curled around a fireplace, clothed and observing the stars...
Among everyone, all ghosts, each displaying their own semblance of life, only...the one stirring the situation, as always, accompanied by the corner clock chiming....
At half-past four in the morning.
Through the "dream tunnel," escaped from the world of Demon Slayer, back to the Hunter World.
Promptly opened his eyes, this time...Roy looked through the window at the dawn yet to break, did not turn over to rise, instead spread a swamp across the soft bed, sinking directly into it, resurfacing again, emerged from the antique stone corridor outside!
[Swamp Space] disregards terrain, freely traversing within ten meters, seeming...even more useful than Roy imagined.
The teenager's mouth slightly curved up, simply stretched his hands and feet, began jogging around Kukuroo Mountain.
He passed through the corridor, rounded the corner, under the stars and moon, exited the castle gate and went down all the way....
After his departure, in the dim little room, an old man listening to cartoons, with a blanket over him, rocking in a chair, closed eyes slowly opened a slit, coldly smiling towards a dark corner: "That kid's 'concealment skills' can surpass that of a grandfather."
"Darkness" churned...a head of white hair swayed, Zeno walked out with hands behind his back, respectfully called: "Grandfather."
Maha closed his eyes, simply did not look at him, only continued to scoff, "Oh...isn't this Zeno Isaac?"
"Decided to return from your father Netero?"
Zeno:"..."