In a world devastated by the invasion of strange souls from Earth, the residents desperately struggle to resist possession by these foreign entities. Amidst this chaos, we follow the intertwined stories of Hei Xin and Xu Jia. Hei Xin, fused with the soul of the final villain, and Xu Jia, who has absorbed the soul of the protagonist, both face an uncertain fate. However, only Hei Xin knows the hidden truth about the world and its inhabitants. Can these two characters, with their intertwined destinies, survive and uncover the secrets that could either save or doom their world?