After a burst of steaming flames and an explosion, the entire Demon Slayer Corps headquarters "boiled" up.
Inside Chinatsu's temporary residence, Inosuke and Zenitsu, their eyes blindfolded, sat cross-legged on the floor, struggling to maintain "total concentration breathing."
Tanjiro walked around them, deliberately disturbing them with the sound of his footsteps, and even harassing them more directly from time to time.
For example, touching someone's head.
For example, you could reach out and tickle the soles of their feet.
Inosuke was alright with this kind of direct interference, but Zenitsu was basically broken every time Tanjiro tried to interfere, and he was almost driven to the brink of collapse.
Tanjiro awkwardly scratched the back of his head. This training method wasn't his own invention. When they were still training under Master Urokodaki, Master Urokodaki simply told them to calm down and maintain full concentration breathing. But if either of them interrupted full concentration breathing, he would swing his club hard at them.
Tanjiro was stunned when he heard this, and his body trembled as he recalled the power of Urokodaki's club.
Just as Urokodaki finished speaking, Chinatsu, who was sitting next to Tanjiro, raised her arm with a serious expression.
"Master Urokodaki! I don't think this is a good idea!"
A look of confusion immediately appeared on Urokodaki's face. He then waved his hand at Chika, signaling her to continue.
Tanjiro initially thought his sister was afraid of Urokodaki's blows, just like him, but after hearing what Chinatsu said next, he realized he had been overthinking it.
“Master Urokodaki, learning Changzhong is definitely not something that can be done overnight. You can beat us in daily life, but what about when we sleep? Are you going to stay up all night every day to watch over us?”
Chinatsu's words were very firm, and Urokodaki realized what she meant. He then lowered his head and gave a bitter laugh.
If there were teaching assistants nearby... no, even if there were one more disciple who didn't need to cultivate "Changzhong" and they could take turns, the plan he was proposing would be feasible.
Unfortunately, he had no teaching assistants or other disciples.
Seeing the dejected look on Urokodaki's face, Chika continued, "So, Master Urokodaki, should we keep each other accountable for the Concentration Breathing exercise? We're still young, so taking turns watching the night shift shouldn't be a problem!"
Hearing about Chika's good intentions towards Urokodaki, Tanjiro felt a little ashamed. He hadn't noticed it at first, and thought to himself that it was good that his sister had realized it.
“That’s right, Master Urokodaki, let’s do it ourselves! Let’s keep each other in check! We definitely won’t slack off!” Tanjiro said earnestly to Urokodaki.
A wave of emotion welled up in Urokodaki's heart. They were so considerate of their master... They were truly two good children!
Urokodaki ultimately agreed to Chinatsu's suggestion, so for "Complete Collection - Normal Mode," Urokodaki only explained the concept of the technique and some slightly useful auxiliary tips; the rest was completed independently by Chinatsu and Tanjiro.
Recalling the scene of his older sister supervising him when he was practicing "Total Concentration Breathing: Normal Central," Tanjiro shook his head helplessly. If he didn't want to dampen their enthusiasm, he really wanted to say that what the two of them were going through now was really gentle compared to what he had gone through back then.
"Keep it up, everyone! The duration you can maintain it has improved significantly. I believe you'll all learn it soon!" Tanjiro said with a smile, clapping his hands.
Zenitsu and Inosuke were already feeling a little resigned; if it were just one person training alone, they probably would have quit long ago.
But now they are two people, and they have become pressure on each other, thinking that if the other has not given up, how can they give up?
Despite this positive involution, the two made significant progress. From the moment they woke up in the morning until now, they had been concentrating on their breathing without stopping.
Until... Bang!!
Inosuke and Zenitsu, who were inside the room, both shuddered. Their previously stable, fully concentrated breathing vanished, and they both fell backward onto the floor with a thud.
"Tanjiro! Tanjiro! What happened?!"
Because their eyes were covered by a black cloth, the two couldn't see what was happening immediately, and when they asked Tanjiro in confusion, they didn't receive a response.
The two hurriedly reached out to try and untie the black cloth covering their foreheads, but Tanjiro had tied it too tightly. It took them quite a while to untie it by feel, as they had no way to see.
When the two removed the black cloth covering their eyes and looked around, Tanjiro was nowhere to be seen. However, the commotion coming from afar made it clear to them how to resolve their doubts.
The two grabbed their Nichirin Blades and rushed toward the direction from which the commotion was coming from, while Tanjiro had already arrived at the "scene".
Tanjiro has an extremely sensitive sense of smell. He can detect not only subtle scents but also "emotions." He sensed the explosion even before it happened.
Is my sister using Hinokami Kagura?
Tanjiro was a little puzzled. Just as he was thinking to himself, the explosion came right after him, and the sound came from the direction where Chinatsu was.
elder sister? !
Tanjiro's heart tightened, and he turned and ran. By the time Zenitsu and Inosuke shouted for Tanjiro, he had already left the vicinity. At this moment, just as Zenitsu and Inosuke were starting to run, Tanjiro had already arrived at the training ground.
Black smoke still billowed in the training ground. Chinatsu stood in the center of the training ground, holding a Nichirin Blade, while at the edge of the training ground, the Flame Pillar, Rengoku Kyojuro, maintained a defensive posture with his Nichirin Blade.
Kyojuro narrowly blocked Chika's attack just now. He was slightly out of breath, and his wrist holding the Nichirin Blade trembled slightly.
Compared to the attack power when I used Water Breathing in the first round, it's not even in the same league. Although both are flame sword auras, there's no doubt that Chika's flames are more advanced than mine.
Kyojuro Rengoku pondered for a moment and slowly withdrew from his defensive stance, gripping the hilt of his Nichirin Blade with both hands as he returned to a fighting stance.
Was he scared?
His heart was filled with excitement and admiration for Chika.
Their eyes met, and before they could finish speaking, they both took a step and rushed forward again.
The two wielded their Nichirin Blades at a remarkably fast pace, the resulting ripples of sword energy striking the ground and causing a series of small explosions.
As they clashed repeatedly, the blades of their Nichirin Blades gradually began to glow red...
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