Hello, my friends. I don't really have anything to say before this chapter so let's do these power levels.

Tanjiro - 6500

Muichiro - 3200

Rengoku - 3500

Uzui - 3500

Mitsuri - 3000

Gyomei - 7000

Alright, now let's get into this chapter.

Tanjiro dodged another attack from Gyomei and Kyojuro as he jumped back to gain distance.

"Muichiro! The forest!" Tanjiro screamed as Muichiro immediately understood and jumped into the forest to separate as Mitsuri followed him.

"Breath of Sound, First Form: Roar!" Tengen said as he rushed at Tanjiro. Tengen lifts his twin swords above his head and slams them down at Tanjiro, causing a loud sound resembling thunder as a result.

Tanjiro picked up a stick and used it to attack Tengen as Kyojuro and Gyomei attacked him from behind.

"Breath of Sun, First Form: Burning Bones"

Tanjiro rushed at Gyomei.

"Summer Sun!"

Gyomei blocked the attack and used his chain to trap the stick Tanjiro used.

"I see, so Tomioka wasn't lying when he said you could use the breath of the sun." Gyomei said as Tengen and Kyojuro attacked him from behind.

Tanjiro saw this as his demon slayer mark flared as he entered the transparent world. Tanjiro jumped back and quickly cut his own fingers and cut Kyojuro and Tengen's backs as he left some of his own blood the their wounds.

"Blood Demon Art: Combustion Blood!"

Tanjiro used his blood demon art as the blood from his fingers ignited into pink flames. Tanjiro manipulated the fire to shoot at the trio of Hashira.

"Breath of Flame, Fourth Form: Blooming Flame Undulation!"

Kyojuro used his flames to block the demonic pink fire. Tengen used his superior agility to dodge the fire as Gyomei jumped into the air and attacked Tanjiro with his axe.

"Breath of Stone, Third Form: Stone Skin!"

Tanjiro used his stick to block the attack.

"Breath of Sun, Tenth Form: Fire Wheel!"

Tanjiro attacked Gyomei as Gyomei was hit in the chest but Tengen came up behind him.

"Breath of Sound, Fourth Form: Musician's Voice!"

Tengen began to send multiple wind slashes and nichirin bombs at Tanjiro.

"Breath of Sun, Eleventh Form: Fake Rainbow!"

Tanjiro disappeared and reappeared behind Tengen, leaving behin a rainbow-colored flame trail as Tengen's attacks hit Gyomei as Tanjiro immediately entered the selfless state so that Tengen wouldn't notice him.

"Sorry Himejima!" Tengen said apologetically as he began looking around for Tanjiro.

Kyojuro stood in amazement as he analyzed Tanjiro's fighting style.

"How…can Tengen not notice him? He's standing right behind him. Wait, Tomioka said that it was as if the demon had no presence in battle at all. Hell, even if I wasn't looking at him I wouldn't be able to notice he was there. How can this be?" Kyojuro thought as he prepared to attack Tanjiro.

"Breath of Sun, Eighth Form: Sunflower Thrust!"

"Breath of Flame, First Form: Unknowing Fire!"

Kyojuro said as he rushed to attack Tanjiro and slash at his neck. It was too late as Tanjiro had already pierced Tengen's right lung as Tengen fell down. Tanjiro dropped the stick and focused on Kyojuro.

"Uzui! You'll pay for that, Demon!" Kyojuro said as he rushed towards Tanjiro with flames covering his red nichirin blade.

"Blood Demon Art: Combustion Blood!"

Tanjiro said as he clenched his fist and ignited the blood he left in Kyojuro's wounds on his back.

Kyojuro screamed in pain as he the exploding demonic fire forced Kyojuro further into the forest.

"Kyojuro!" Gyomei screamed as he attacked Tanjiro with his flail and axe.

"Breath of Stone, Fourth Form: Rapid Conquest!"

Tanjiro was struck with the axe and fail as large chunks of his body were ripped off and his haori, kimono, and scarf were ripped off, leaving him shirtless. Tanjiro immediately regenerated and attacked Gyomei.

"Blood Demon Art: Demonic Flame Claws!"

Tanjiro ignited he sharp nails into flames and used them to attack Gyomei. Gyomei suddenly jumped back to gain distance as he began to use one of his strongest attacks.

"Breath of Stone, Fifth Form: Arcs of Justice!"

Gyomei barraged Tanjiro with his axe and flail. Tanjiro tried to move out of the way but Gyomei was too fast and Tanjiro was hit with all of Gyomei's attacks.

Tanjiro began to instantly regenerate as Gyomei stopped attacking.

"You're starting to fatigue." Tanjiro said as he used his blood demon art to shoot fire at Gyomei.

Gyomei blocked the attacks with his flail, but was slightly burned on his arm and cheeks.

"My fatigue is irrelevant right now. I will end you before my fatigue can take effect." Gyomei said.

"We'll see." Tanjiro said as he regenerated.

But as Tanjiro regrew his left eye, he saw something that not even Gyomei noticed. The mark appeared and it was on Gyomei. The same mark that he and Muichiro had obtained. His mark looked different however. The pattern took the appearance of cracked earth on both of his forearms.

Tanjiro was shocked but amused. Gyomei was already stronger than him, but now he has the mark. He knew Gyomei was gonna viciously pummel him.

"You obtained the mark, however you are clearly over the age of 25, you will most certainly die tonight." Tanjiro said much to Gyomei's confusion.

Gyomei had no idea what Tanjiro was talking about. Gyomei then noticed the mark on his forearms and took a shocked expression. He felt his strength and speed increase and his fatigue almost vanished entirely.

"So this is a demon slayer mark huh? Well this is gonna be my key to victory." Gyomei thought as a smile appeared on his face.

Gyomei then dodged an attack as Muichiro attacked Gyomei with his…Nichirin blade? Muichiro's blade was a standard sized and shaped Nichirin katana that is white in color, his katana's handguard is rectangular with hollowed rectangles at each corner, all of which are gold in color. Along with his katana, Muichiro also carries a standard sword sheath that is black in color.

"Woah! Muichiro, where'd you get that nichirin blade?" Tanjiro asked.

"Haganezuka gave it to me after I defeated that pink haired girl. I was on my way here, when I saw him in the forest and gave it to me. He also told me to give this to you." Muichiro said as he tossed Tanjiro's nichirin blade to him.

When Tanjiro touched his blade, it turned obsidian black in color with gray flame marks on the sides, and the handguard is a black ring connected to its core by lines with a border of the same color, which heavily resembles a wagon wheel in appearance. Tanjiro also has a standard sword sheath that is obsdian black in color.

"Nichirin blades? How did they get those. They must've gotten a swordsmith from the swordsmith village to make them. These truly are the most evil creatures I've ever met." Gyomei thought.

Tanjiro was mesmerized by his own Nichirin katana as he placed it on his hip and unsheathed it.

"I suppose now the real fight begins, huh?" Tanjiro said as he gripped his nichirin blade as it turned red.

"Blood Demon Art: Murder Mist." Muichiro did the same as he entered the transparent world.

"Let's end this now." Gyomei said as he too entered the transparent world and began to ready his axe and flail.

Alright, chapter end!

Two chapters in one day? Yeah I know it's crazy, anyways, Power Levels.

Tanjiro - 8600

Muichiro - 5400

Rengoku - 3500

Uzui - 3500

Mitsuri - 3000

Gyomei - 10500

Alright, if your wondering why Tanjiro, Gyomei, and Muichiro got stronger, it's because of them Gyomei getting a demon slayer mark and Tanjiro and Muichiro getting bright red nichirin blades.

Next Chapter is gonna be explaining what happened with Muichiro vs Mitsuri.

Alright now,

SAYONARA!