They arrived at the medical ward.
A large number of medical staff came over.
Among them was Butterfly Shinobu's younger sister, Kanao.
There were other young girls, too, along with some members of the Demon Slayer Corps.
There were roughly a hundred people in all.
"Big sister."
Kanao threw herself into Butterfly Shinobu's arms.
"And this is...?"
Kanao looked at Uchiha Kazama.
"This is Uchiha Kazama. He's... my lover!"
"He's also here to teach you some special medical techniques."
"In a moment, everyone will need to cooperate with Kazama's instructions."
"He was the one who healed our master."
Butterfly Shinobu quickly explained the situation to everyone.
Butterfly Shinobu was a Hashira, after all!
So no one doubted her words.
With that, they quickly began learning the simplest methods of chakra extraction and control from Uchiha Kazama.
Then they began studying Medical Ninjutsu.
Kanao was so talented that she had already mastered special Medical Ninjutsu for mental recovery and healing.
"Lord Uchiha."
"Can we teach these special techniques to other people?!"
Kanao felt the power in her hands.
If she treated those wounded now, she would certainly be able to give them a better chance of survival.
That... was what mattered most.
But if they could teach this ability to others, then...
She knew that asking this much was a little unreasonable.
But...
"Yes, you can."
"But you'd best not start teaching Medical Ninjutsu right away."
"For now, the most important thing is to get a firm grasp of this knowledge."
As Uchiha Kazama spoke, he continued explaining the finer points of Medical Ninjutsu, along with how to improve their chakra control...
It took a full half month for him to teach everyone the complete system of Medical Ninjutsu.
It wasn't that Kanao and the others were slow learners. The