In fact, she was willing to accept the sacrifice because according to the legend, if she completed the sacrifice, she could truly become one with Yae. Hence she hoped for Yae to slay her.
Except that right up to the day of the sacrifice, Yae had not returned.
On the day of the sacrifice, in the absence of a twin witch, Atsushi, who was in despair, was strangled with a rope and thrown into the Void. However, there was no room for mistakes during the ritual. It was not Yae that killed Atsushi, hence it could not suppress the Void's resentment and prevent it from erupting. The wrong ritual had caused the void to open up and create a great calamity. Hence, Atsushi descended with resentment and killed all the surviving villagers one by one. As she watched the villagers die, she laughed wildly.
Yae, meanwhile, had lost her way while journeying to the village. When she finally got back onto the path, she realized from afar that the village had disappeared.