Chapter 281: Falling to the realm of Dreams - Demons Arrive!
Shinobu later realized that the said fight between the demon and her Sword Spirit in her Inner World had been nothing but a stalling technique.
By the time Shinobu had figured out a way to leave the forced dream, an Upper Rank Demon had already dealt a fatal blow to her vitals.
No wonder she couldn't awaken the Demon Slayer Marks and resonate them with each other to release her Bankai. She had been fighting two battles simultaneously, one outside and the other in her Inner World, using her Sword Spirit.
When Kai had come, this demon had been forced to leave Shinobu's Sword Spirit, but things had already become unsalvageable by then.
Her death was an outcome set in stone if Kai hadn't come to save her, and the further treatment he had given to her in the hut.
...
Presently,
Kai saw the boy smiling at him, but his eyes weren't reflecting the boy's image.
It was the hand propped up on the boy's shoulder. This hand was cut just above the wrist, looked pale and white, and there was a mouth on the backside of its palm.
To the right of this mouth, over the thumb, was a green toad-like eye.
Kai's hair stood over his neck as he saw the mouth open, rows of bone-white teeth salivating over the boy's shoulder.