A piece that was set up a long time ago and is half-written and unfinished. The long-standing entanglement between humans, the Yu Tribe, the Kun Tribe and the Underground Tribe slowly began to erupt. The Xiga Empire has not allowed twin princesses to appear since ancient times. However, this time, when one of the twin princesses was sacrificed alive, she was taken away by Yu Ren before her eyes. Is it intentional? No one knows, but when humans fired arrows at the Yu Clan, announcing war with the Yu Clan, a chaotic world began...