Musashi didn't mention anything about catching Muzan; this matter was still uncertain, and the fewer people who knew, the better.
"It's a pity my strength is too weak… Otherwise, I would want to go with you…"
Tanjirou said regretfully after hearing Musashi's words.
Muzan was also the culprit who had almost killed his entire family and turned Nezuko into a demon, and Tanjirou also wanted to personally slay him.
But now he couldn't even deal with Upper Rank Six; by himself, he could only kill Daki, let alone confront Muzan.
"You should focus on recovering from your injuries. I'm just trying my luck; the chances of finding him are minimal," Musashi said with a smile to Tanjirou.
"You should have already used the method I taught you earlier to enhance breathing intensity, right?" Musashi then asked Tanjirou.
When Tanjirou was first brought back, Musashi noticed that his internal organs were slightly displaced, guessing that he had used the method he taught.
"Mm…"
Tanjirou responded with a sound.
"Although you should already know, I still want to remind you that this technique is best used only in life-or-death situations. Otherwise, you will become very vulnerable when you temporarily lose your combat ability after using it.
Moreover, once your Total Concentration Breathing, Constant, can be maintained for a long enough time and your breathing intensity increases, it will become useless, but the injuries sustained during this period will stay with you forever."
Musashi reminded Tanjirou.
"Musashi… Thank you for your concern… But if I can save more people with this temporary boost… then what do permanent injuries matter to me…?"
Tanjirou said with a smile to Musashi.
Musashi was not surprised by this; he knew what kind of person Tanjirou was, and such words were completely reasonable.
"I guessed you would say that. Alright, I was just reminding you.
However, I suggest you let Kochou examine you later when she has time to see if you can recover," Musashi said to Tanjirou.
"That's all I have to say. Get some good rest and try to recover soon. I'll be leaving now.
Although the plan is to search for Muzan, if I have nothing else to do this week, I'll likely stay at headquarters. If you need anything, you can have someone find me."
Seeing Tanjirou's tired appearance, Musashi said no more, stood up, and bid him farewell.
"Mm… I wish you… success…" Tanjirou said with a smile, then, unable to resist his weariness, fell asleep.
Musashi smiled at this, quietly exited the ward, where Kanao was still waiting outside the door.
"Alright, we've finished talking. Tanjirou is sleeping now, so you can go back to watching over him. I apologize for separating you two during your brief time together because of me."
Musashi said to Kanao with a slight tease, his tone resembling an elder's. However, as Tanjirou's senior, it was not inappropriate for him to speak as their elder.
Due to his mother's serious illness, Musashi had been sensible and matured early since childhood, and his actions often appeared more seasoned.
"No… It's fine, as long as I know he's safe, whether we stay together or not isn't important." Kanao smiled faintly and spoke her first words to Musashi, instantly filling his mouth with sweet affection.
However, Musashi felt nothing about this, only silently blessed them in his heart. Currently, he had not experienced such feelings.
"I wish you two a happy and fulfilling future together," Musashi said with a smile, then turned and left.
A happy and fulfilling future? What did that mean?
Kanao heard these two phrases and stood in place, tilting her head in confusion, not understanding why Musashi would bless her like that. After a while, she stopped thinking and gently walked back into the ward…
One week later
Musashi hadn't been idle during this week, exercising every day, though with minimal results. He found it difficult to feel tired, so he felt as if his workouts made no difference.
At the same time, the Master had replied regarding Kaigaku's matter, agreeing to help him conceal it. However, Kaigaku's disappearance also needed an explanation. The Master said that if anyone asked, they would say Kaigaku had left the Demon Slayer Corps and his whereabouts were unknown.
Given Kaigaku's popularity within the Demon Slayer Corps, probably not many people would inquire about him. Zenitsu also knew what kind of person Kaigaku was, and it was clearly his style to leave without greeting anyone.
However, if Zenitsu truly asked, Musashi still planned to tell him the truth. Although he would undoubtedly be very sad upon learning the truth, this matter would not have a significant practical impact on him.
As long as Kuwajima Jigorō didn't find out about this, it would be fine. Musashi believed that even if Zenitsu knew, he would understand the gravity of the situation and wouldn't tell Kuwajima Jigorō.
And Crow had stopped babbling during Musashi's week of "training."
After packing his belongings, Musashi planned to set off. He had already obtained the Master's approval for this matter.
He would keep an eye on his patrol area while searching for Muzan. The Master said that Kyojuro's patrol area no longer needed his management. Kyojuro had previously said that he would return to the front lines after coming back from Swordsmith Village.
Just as Musashi was about to depart, someone approached him.
"Musashi, good thing you haven't left yet."
Genya ran up to Musashi, his expression filled with joy.
"What's wrong?"
Musashi asked, curious about his happy demeanor.
"I can now use the Cloud Breathing you taught me in combat. After you left some time ago, I went on a mission, and with this Breathing Technique, my battles have become much easier.
Although I can still only release small wisps of mist, it's enough to obscure my figure, making it much simpler to use my firearm afterward or seize the opportunity to eat a demon's body to demonize."
Genya excitedly told Musashi.
He had also completed a mission during this time, and Cloud Breathing allowed him to win the battle with ease.
After obscuring his and the demon's figures, he would secretly fire his gun, then find the demon's flesh and blood to eat and demonize. Because the demon was much weaker after being hit, he could even directly bite the demon's body.
After demonizing, he could directly transform into a melee AD, using his firearm for headshots, thanks to the regeneration ability he gained.
"I heard you returned from your mission and wanted to come thank you. I think I'll be able to help my brother very soon. I've already slain over twenty demons. If I work harder, I might even become a Hashira, and then I'll be able to reunite with my brother."
Genya yearned in his heart, unconsciously becoming much more optimistic and cheerful than usual. He was now like a child seeking his elder brother's approval.