Abyss no Ishi アヴィスの意志

The existence that governs the Abyss. Usually appears in the form of a bloodied rabbit doll with big round eyes. The real form of the Will of the Abyss is Alice with white hair and clothing.

It was thought that the Will of the Abyss wanted Oz and Alice to go back in the Abyss. The Will of the Abyss and Alice are somehow connected. She also has powers such as destroying Chains, switching between the Abyss and the outside world and changing the Past. Her name given by the fandom is Alyss to differentiate her from Alice.