Black Abyss and White Flower, also known as the Sixth God Key, is a weapon in the mobile game "Collapse 3" and its derivative works. It is a weapon made from the core of the Lawgiver of the Sixth Law of the Civilization Era, the Law of Death, and is a twin God Key that combines decomposition and creation. It looks like a pure white knight spear on the outside, but in fact it consists of two parts: the pure white knight spear with white flowers on the front side and the black spear with black abyss on the back side. The pattern on the outside of the spear is the source of the emblem of the Shaniat family. As the key to the ability to reverse the law of death, Black Abyss and White Flower possess both the ability to decompose and create.