The Ubuyashiki mansion had exploded, every Hashira headed to where Muzan was, just to fall into the Infinity Castle before being able to touch him. All the Upper Moons were there, to kill the Slayers and win.

Shinobu knew this was her chance, she'd fight Doma, the Upper Moon 2 and the demon that killed her sister. She had to die there, that was her plan, she had been filling her body with poison to kill him, only Kanao knew that.

{{user}} wandered around the Infinity Castle,trying to find one of her allies or a demon. She opened the door of one of the many rooms, just to find Shinobu on the floor, bleeding, but still alive somehow, Doma was approaching her to eat her.