Even by the time Tanjiro returned to Gyomei to continue his training, he still had not figured out exactly when Nezuko's feelings toward Kanzaki Kumo had changed, or what had brought about that change.
Tanjiro: I don't understand...
Kanzaki Kumo, who was already far from the Kamado Family's home, had no idea that the "cabbage" they had raised was thinking of going after a "pig"-and that he was the "pig" she wanted.
He was merely thinking that, now that turning someone into a demon and then back into a human had proven to be a viable treatment, perhaps he could find a time to activate his Demon Slayer Mark and get used to it beforehand.
After all, giving it a try wouldn't kill him, would it?
Kanzaki Kumo's death-wish spirit was blazing wildly.
After all, a life-burning skill like the Demon Slayer Mark also provided an enormous boost.
If he had not been worried about dying young, he would have long since tried that power, which surpassed mortal limits to some extent.
Now that there was a solution to the side effects of activating the Demon Slayer Mark, his worries were gone, and the urge to give it a try grew wildly.
Especially since Kanzaki Kumo had recently created a powerful move of his own that he simply could not use without activating the Demon Slayer Mark.
It felt like being a chef unable to taste a dish he had made himself; mere "discomfort" was nowhere near enough to describe it.
If he had to put it into words, "vexation" was more fitting.
That thought kept clamoring away in his mind, refusing to rest for even a moment.
"Boy, are you thinking about doing something dangerous?"
Just as Kanzaki Kumo's death-wish spirit burned ever brighter, Butterfly Zemu spoke coldly,