Byakuya accidentally traveled to the battlefield of the Fourth Fuyuki Holy Grail War, and was equipped with a mysterious system. At the beginning, he was given a forbidden gift - the Black Holy Grail. Taking this as an opportunity, he did not summon a single servant, but awakened the eight pillars of existence that transcended common sense: the seven beasts that bear the evil reputation of mankind, and a judge who is above the conventional ranks and possesses sacred and alien power-Metatron Joan of Arc. When mankind's prayer for salvation and the disaster that destroyed the world were all attributed to one person, the rules of the Holy Grail War were completely subverted. How will Bai Ye control this power that can overturn human nature? Will he become the embodiment of destruction, or will he use beasts to control beasts and open up an unprecedented path? This abnormal Holy Grail War caused by him begins now!