The universe begins with Demon Slayer: Kimetsu no Yaiba

After drinking tea, Izuka couldn't wait to see what color Hakuha and Tanjiro's Nikkawa knives could turn into.

"Hurry up and pull out your swords and take a look! Your name is engraved on the scabbard! Look which knife is your own! Izuka urged as he swung his palm.

Hearing this, Tanjiro couldn't wait to take the Nikki knife engraved with his name in his hand.

Bai Yu, who possessed the Ghost Slashing Knife, was not excited about this, but out of respect for the Iron Tsukasa of the forging knife, Bai Yu still took his Nikkawa Knife.

"The Nikkawa knife, also known as the color-changing knife, changes color depending on the owner." Izuka continued.

Hearing this, Tanjiro couldn't help but pull out his Nikki knife, and then Tanjiro carefully looked at the blade.

A few seconds later, the golden primary blade of the Nikki knife in Tanjiro's hand gradually darkened from the end of the knife.

The pitch-black color spread all the way to the entire blade, and Tanjiro couldn't help but feel very magical.

"Black!"

Gangzuka couldn't help but shout, with a hint of dissatisfaction in his tone, and the whole person trembled uncontrollably.

"Black?" Taki Zuoji was very indifferent and muttered.

Tanjiro couldn't help but get nervous when he saw that Steel Tsukasa was so nervous, and then asked: "Eh~ Isn't it bad to be black?!" Isn't it auspicious?

At this time, Taki explained to Tanjiro, "No, it's not true, it's just that black is not often seen.

Finally, he couldn't help it, and shouted madly: "I thought I could see the bright red blade!" Damn it! After

calling, Izuka jumped up, then hugged Tanjiro, and then locked Tanjiro with a lock technique.

Tanjiro suddenly did not dare to make a big move, and could only shout: "It hurts~ Mr. Steel Tsuka, please calm down, how old are you, and you are still like a child!"

Hearing this, Gangzuka was not ashamed at all, and replied very seriously: "Thirty-seven!"

Bai Yu did not pay attention to them, but curiously pulled out his Nikkawa knife, and Bai Yu was also curious about what color his Nikkawa knife would be.

As Bai Yu pulled the Nikwa knife out of its scabbard, after a few seconds, Bai Yu's blade also began to change color.

I saw that the blade of the white feather appeared two colors, aqua blue and dark green, these two colors appeared unevenly, and collided with each other.

Finally, under the mutual squeeze of the two colors of dark green and sky blue, the sky blue part is squeezed into a wave shape on the blade, and the other side of the blade is covered with dark green.

"Two colors!"

Taki Zuo, who was sitting on the side, was rarely shocked when he saw the color of the White Feather Nikwa Knife.

When Izuka heard Taki Zuoji's words, he immediately shifted his attention to Shiraha's Nikkaku knife.

After seeing the two-colored Nikwa knife of Shiroha, Izuka suddenly let go of Tanjiro, and then quickly came to the front of Bai Yu, carefully looking at Shiroha's two-color blade up close.

"There are actually two colors! What's going on? "The steel tomb is a little confused.

"Please show me the knife!" Izuka couldn't help the excitement in his heart, so he wanted to go and take the Nikkawa knife in Bai Yu's hand.

Bai Yu also had no opinion, and took the initiative to hand over the Nikki knife.

At this time, Taki Zuo couldn't help but come over and study Shiroha's two-color Nikki knife with Steel Tsukasa.