In the courtyard outside the house, a shirtless Pig-headed Boy was running wildly.
"Wait! Inosuke!"
"Mr. Inosuke! Your injuries haven't healed yet, come back quickly!"
Tanjirou and Kanzaki Aoi, both in patient gowns, chased out from the corridor, and the three of them began running around the courtyard.
Mizuki couldn't help but laugh, saying, "They're really energetic. Shinobu, I think..."
She turned her head while laughing, and her voice abruptly stopped.
Oh dear... what a scary expression.
A shadow fell across Kochou Shinobu's face, and she quietly stood up: "Mizuki, please sit for a moment."
"...Mm." Mizuki was afraid her next sentence would be 'I'm going to take his head'.
"Hahaha~ Charge forward~ Charge forward~"
Inosuke ran joyfully, when a figure suddenly appeared before him. He quickly braked and finally stopped before crashing into Kochou Shinobu.
The dazed Pig Head looked down.
Kochou Shinobu extended her hand with a smile, gently stroking his head: "No, you can't be so reckless."
A suspicious blush appeared on the wild boar mask.
"Yes..." As soon as he spoke, his beast-like intuition suddenly made him shiver.
The girl, who had just been smiling, had her smile vanish instantly, and she swung her sandbag-sized fist at him with a blank expression.
Even with Inosuke's beast-like intuition, his injuries hadn't healed, and facing a Hashira stronger than him, he couldn't dodge at all.
Under the critical strike, he fell straight down, suspicious foam overflowing from under his mask, and a large red bump broke through the mask.
Tanjirou and Kanzaki Aoi, who arrived shortly after, couldn't help but swallow their saliva when faced with the girl radiating a dark aura.
Kochou Shinobu said darkly, "Take him back and keep him under strict supervision. Tie him to the bed."
The two cried out, "Yes!!"
So scary! Miss Shinobu is so scary!
The two didn't dare say another word, carrying Inosuke away, afraid that if they lingered, Miss Shinobu would beat them too.
Watching the three figures leave, Kochou Shinobu sighed and returned to Mizuki's side: "Really, messing around before his injuries have healed. His body was almost recovered, but now he'll have to lie in bed for a few more days."
Mizuki's mouth twitched slightly.
No, she thought this was inseparable from her... Mizuki could tell that even though Shinobu was exasperated by The Three Little Ones, she also found some enjoyment in it.
The atmosphere of the Demon Slayer Corps had never been good; the pressure from the demons kept everyone from being happy.
But the arrival of these three had made the Butterfly Mansion unusually lively. In terms of creating a ruckus, they were practically an army unto themselves.
As the three gradually recovered, their rehabilitation training under Kanzaki Aoi's guidance was quite interesting.
It seemed that upon learning of Tanjirou single-handedly defeating the lower rank five, Inosuke's spirit visibly soared, and he actively participated in every rehabilitation training session.
Zenitsu Agatsuma was also very active, but his initiative always felt a bit insincere.
For example.
"Um, Miss Mizuki, could I trouble you to help me with my rehabilitation training?" Zenitsu Agatsuma said, flicking his hair with a flamboyant air.
Kochou Shinobu's face darkened, and she was about to speak but was stopped by Mizuki.
Mizuki smiled: "Alright."
"That's great!" Zenitsu Agatsuma turned and clenched his fists.
He had already asked Tanjirou; Miss Mizuki was not a member of the Demon Slayer Corps, just a guest.
The advantage was his.
The two sat at the table, where several cups of tea were placed.
Zenitsu Agatsuma's eyes sparkled: "Miss Mizuki, please."
"Did it start?"
"Um, ladies fir..."
Pfft... a face soaked with tea.
Zenitsu Agatsuma was stunned for a moment. "I wasn't ready just now."
"Alright, let's start over then."
Pfft.
"I just..."
A quarter of an hour later, Mizuki stood up in a joyful mood.
And Zenitsu Agatsuma sat drenched in place.
Mizuki nodded in satisfaction. This guy, during the game, his attention was entirely on her hands; there's no one else like him.
"Shinobu, let's go sunbathe."
Kochou Shinobu replied with a smile: "Mm."
...After a small interlude, Tanjirou was the first to defeat the great demon Kanao, while the other two continued to work hard.
As for the Total Concentration Breathing Constant Concentration technique, Tanjirou had fully mastered it during his battle to defeat lower rank five Rui, which perfectly fit the objective image of a protagonist breaking through in a critical situation.
Inosuke and Zenitsu, on the other hand, practiced even harder and quickly mastered this technique as well.
Zenitsu Agatsuma always gave people an unreliable impression, but in reality, his foundation was not inferior to Tanjirou's.
Attitude can be deceiving, but the body cannot.
Mizuki understood this after seeing him practice a Breathing Technique in the courtyard in his sleep one time; this guy's efforts were just a bit strange, not that he was slacking off.
During this time, for some unknown reason, the Lower Rank Demon Moon caused disturbances one after another, and the Hashira of the Demon Slayer Corps consequently left, leaving the place deserted.
Then, one day after Tanjirou and the others mastered the Constant Concentration technique.
Mizuki was discussing the intensity of Breathing Techniques with Kochou Shinobu indoors. Kochou Shinobu was saying something with a smile, her eyes inadvertently looked outside, and her face instantly stiffened.
Before Mizuki could turn her head, she felt a disgusting malice coming from behind her.
She couldn't help but look back, only to see a man wearing a fire man mask and a patterned kimono crawling darkly along the corridor, peeking at them.
"…"
This guy must be crazy.
As if he hadn't seen them at all, Haganezuka crawled forward, twisting his body to Mizuki's side, and reached out for the Nichirin Blade placed on the tatami mat.
Just as he was about to succeed, a foot clad in white long socks coldly stepped down... Inside the room, Tanjirou looked at Haganezuka, who had been subdued by Mizuki and was sitting trembling to the side, and said with a sweat, "Mr. Haganezuka accompanied Mr. Tetsunomori to deliver a sword for Inosuke."
Accompanied to deliver a sword?
Mizuki glanced at him sideways.
"Eek!" Haganezuka trembled all over.
Tetsunomori, also wearing a fire man mask, introduced himself: "My name is Tetsunomori, and I am the one who forges swords for Lord Inosuke."
"If I can be of help in battle, it is my honor."
Mizuki let out a long breath and nodded inwardly, 'There are still normal people'.
"Lord Inosuke?"
Before Mizuki could finish her thoughts, a commotion arose nearby.
Under everyone's puzzled gaze, Inosuke went into the courtyard, picked up a stone, and violently smashed it onto two brand new Nichirin Blades until they were jagged.
"…"
After a moment of silence, Tetsunomori exploded: "I'm going to kill you, you brat!"
Fortunately, Tanjirou intervened, otherwise Inosuke would have died tragically at the hands of the blacksmith.
What exactly are these people here for?
Mizuki rubbed her temples with a headache. As soon as her hand lightly rubbed her temples, a pair of cold small hands suddenly pressed against her back.
Mizuki looked up; Kochou Shinobu stood up, smiling, and lowered her head: "Mizuki, would you like to try a professional physician's technique?"
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