Based on the Shadow over Nine Li (九黎之影) expansion pack for the MMORPG Fantasy Westward Journey (梦幻西游), Heigu and Baigu are at odds with each other over the decision of releasing the god of war & king of the Nine Li tribe Chiyou's Malice to the world.

"You two are tied together in the most unique way."

Credits

Zhi ZhuDirector

Wang XuexiHeigu

Sheng Wei ViviBaigu