The space within Infinity Castle suddenly began to tremble violently.
A huge crack appeared in the corridor wall. The ghost-flame lanterns swayed wildly, and the blood-red carpet rippled like waves.
Nakime's expression changed sharply. She hurriedly plucked her biwa strings, trying to stabilize the space, but the strings beneath her fingers began snapping with piercing twangs.
"What's going on?!" Akaza stopped abruptly and scanned his surroundings warily.
The composure on Muzan's face finally vanished. His brows knitted. "Nakime says someone is forcing their way through Infinity Castle's spatial barrier? Impossible! Unless..."
He suddenly recalled the terrifying energy he had sensed in Asakusa Castle yesterday, and unease rose within him for the first time.
Crack!
The spatial rift burst wide open!
"Muzan, I'm coming in~" A sleazy laugh rang out.
"Big brother, get serious! The Spatial Anchor is secured. Opening the passage now!" Tobirama's voice came through the vortex.
The next second, countless figures charged out of the black vortex, flooding into Infinity Castle like a tide.
Leading them was a smiling Li Tetsuhiro. Faint dark energy swirled around him as his crimson eyes swept over his surroundings. A cold smile curled his lips. "Muzan Kibutsuji, it's time to end this little game of hide-and-seek."
As he spoke, he slowly flew high above Infinity Castle under the demons' stunned gazes and looked down on them.
"Kill!" The Demon Slayer Corps followed close behind.
"That's Kibutsuji Muzan! Kill him!" Everyone surged forward, cutting down the demons along the way as easily as chopping vegetables.
The powerful fighters from the Shinobi World hung back behind them, ensuring their safety.
"Underestimating me? You're nothing but prey." After a brief moment of shock, Muzan remembered his immortal body, found a chair, and sat down, ready to enjoy the show.
Secretly, however, he began controlling Nakime,