User blog comment:Chiaki Akira/Chess pieces on disboard?/@comment-34612254-20200122182521

We dont fully know, and thats the point. Tet wants Kuhaku to gather all the races to challenge the god of the world. Its assumed to mean that it will be the whole world against him, using Disboard as the chess board they will play on. "We'll have the best game ever!" its intentionally kept vague due to its huge scale.