"Wind Breathing! Fourth Form: Rising Dust Storm—"
Sanemi Shinazugawa roared, his nichirin blade unleashing five azure slashes that carried a fierce wind composed of immense magic.
After being unleashed, the five slashes rapidly grew, eventually becoming fifty-meter-tall azure half-moons.
"Flame Breathing! Third Form: Blazing Universe—" Kyojuro Rengoku held his nichirin blade high, and scorching flames erupted like a volcanic explosion, forming a descending inferno.
The dark giant moved very slowly, completely unable to block the two powerful attacks from striking its glowing heart.
Boom—The powerful attacks, accompanied by shockwaves, caused the colossal giant's body to twist, and countless Kabane were shaken off its form.
"What? Can't cut it?"
The attacks from Sanemi Shinazugawa and Kyojuro Rengoku had dented the dark giant's chest, revealing the glowing part within.
It was a heart composed of individual Kabane, their bodies completely metallic in color. Even with their full-strength attack, they had only managed to cut in less than a meter.
And from the core of the heart, the Kabane that continuously roared and shrieked 'Kill humans!' and 'Become Kabane!' was still at least twenty meters away.
"Roar, roar, roar, roar—" The Kabane forming the heart shrieked and roared, opening their mouths, each emitting a dazzling light.
"Not good! Fourth Form! Blooming Flame Undulation!" Kyojuro Rengoku instantly used a sword technique to counter large-scale enemy attacks, forming a vortex of flames centered on himself.
"Boom—"
Hundreds of Kabane unleashed blue-purple energy waves that directly impacted the flame vortex.
Kyojuro Rengoku and Sanemi Shinazugawa were instantly blasted away.
In less than a second, the dark giant's blasted open chest was replenished by new Kabane.
"Damn it!" Sanemi Shinazugawa grabbed Kyojuro Rengoku, flying in the air, looking at the surging tide of Kabane continuously merging into the dark giant's feet.
"Kyojuro, we must cut off those Kabane from merging with this monster!"
Sanemi Shinazugawa's eyes were bloodshot as he roared, "You do it! I'll go all out to cut down this monster's core!"
"Leave it to me!" Kyojuro Rengoku also understood the situation instantly.
Sanemi could fly, making him the best choice to deal with this monster, while he had to cut off the monster's regeneration ability.
"Go!" Sanemi Shinazugawa forcefully threw Kyojuro Rengoku downwards.
Kyojuro Rengoku adjusted his stance: "Come on! Boil, my fighting spirit! Burn, my fighting soul!"
"Saving humanity is my justice!"
Kyojuro Rengoku's heartbeat was far faster than before, and his body temperature was far above normal.
All his skills had reached their peak state.
He raised his nichirin blade high, and the fiery red flames gradually changed color, even taking on some blue.
The higher the temperature of the flame, the bluer its color, eventually becoming the highest-temperature white flame.
Fiery red flame patterns slowly appeared on Kyojuro Rengoku's forehead.
Reaching the limit of all skills was not enough; the moment he surpassed the limit, the markings ignited.
The 'markings' were a unique state exclusive to Breathing Technique swordsmen in the Demon Slayer World.
"Flame Breathing! Third Form! Blazing Universe—"
Kyojuro Rengoku seemed to be holding a giant flame extracted from the sun, slamming it heavily at the dark giant's feet.
The continuously surging Kabane were instantly turned into carbon dust by the high temperature.
It was as if a lotus made of flames enveloped a large area.
Within this area, all Kabane were instantly reduced to carbon dust.
Not only that, but a large part of the dark giant's feet also carbonized.
However, the dark giant did not fall; instead, the Kabane on its body quickly filled in the gaps.
"Tear them apart! Tear them all apart! Full magical power!" Sanemi Shinazugawa directly slammed onto the giant's shoulder, and a fierce wind instantly tore apart a large group of Kabane.
Sanemi Shinazugawa, with bloodshot eyes, turned into a berserker, recklessly using sword techniques to hack at the Kabane forming the heart.
Boom, boom, boom—The Kabane forming the heart continuously spewed energy waves, blasting Sanemi Shinazugawa. He did not dodge at all, and the fierce winds constantly gushing from his body, tearing apart Kabane, deflected most of the energy waves.
The remaining energy waves also instantly turned him red.
Blood splattered on the glowing Kabane, and the Kabane instantly slowed down, as if intoxicated.
This was Sanemi Shinazugawa's rare skill, 'Rare Blood,' taking effect.
Any non-human creature that smelled his blood would become as if drunk, and for Kabane, it meant slowing down and falling asleep.
At the same time, the rare skill 'Battle Maniac Physique' also took effect, increasing all basic abilities by 20 points.
"Roar, roar, roar, roar—" Amatori Biba, who had become the core, shrieked and roared. His huge hand directly grabbed a large group of Kabane in his chest, and Sanemi Shinazugawa was caught among them.
He was wrapped up like a zongzi and smashed towards the ground.
"Ahhhhh!" Sanemi Shinazugawa was instantly hard-controlled. Even though the fierce winds on his body continuously tore apart Kabane, he couldn't break free immediately.
At this point, he had completely lost his sanity. While completely losing his sanity, the magical amplification on him had reached the limit his body could withstand.
Boom—Sanemi Shinazugawa was slammed to the ground, and the earth seemed to be turning over, forming mud waves.
"Sanemi!" Kyojuro Rengoku shouted, simultaneously unleashing a full-strength sword strike, a fierce tiger emerging to burn all Kabane within a two-hundred-meter radius to ash.
"Ahhhhhhhhhhh—"
Accompanied by a roar, an azure wind tore apart a large area of Kabane. Sanemi Shinazugawa had lost consciousness.
At the same time, the last effect of the rare skill 'Battle Instinct' took effect:
His body automatically entered 'Battle Continuation State.'
In his unconscious state, all of Sanemi Shinazugawa's skills had reached their maximum amplification, and his body had surpassed its limits, with azure patterns appearing on his blood-stained skin.
"Sanemi!" Purgatory Anjuro only saw an azure meteor rushing up along the dark giant's leg.
All Kabane touched by the azure meteor were crushed. One leg lost too many Kabane, and the giant quickly fell down.
But the azure meteor rushed directly towards the glowing heart.
Large areas of the giant's body were stripped away by numerous azure half-moons.
Soon, the entire glowing heart was exposed.
It was more like a cage than a heart, an iron cage composed of thousands of Kabane locking the core within.
"Wind Breathing: Dust Whirlwind Cleave," Sanemi Shinazugawa unconsciously uttered the name of the sword technique. His entire being transformed into a drill-like tornado, drilling directly towards the core.
The Kabane that smelled his blood became sluggish, and their energy could not be maintained, so they were easily torn apart by the tornado.
At this moment, waves of world will fluctuations arose here.
Before the world will could converge into the core, a sharp divine sense pierced straight in.
"Hehe, don't disturb the trials of my beloved dependents!"