Synopsis: This story begins with a setup in which someone transmigrates through time and space in search of a "false soul" that is their other self. It all starts when a bug causes the world in Zone 0, generated by the game The Sims 4.0, to merge with the ancient otherworldly Chen Kingdom, forming a "merged world," and then collapse. A mysterious force forcibly fuses half of Xia Mengyu's personality and soul with half of Xia Xing's, giving them the condition of [two souls in one body]... They are sisters with different identities, yet share one body and two souls!
When they return to the real world, they discover that she has become Xia Xingmeng, the wealthy heiress of a "mental hospital." She is currently the hospital's "acting director."
Their father has already "vanished without a trace," while their mother, Li Ziyan, is the deputy director of this "special institution, Code Name: Zone 0 Sanatorium."
