Modern history female student Ye Wantang crossed over in a car accident to become a palace draft choice, bound by the "Tyrant Conquest System". To return to the modern era, she must make the tyrant Xie Yunchen fall truly in love with her. The tyrant is moody; she escapes death through sobriety and sincerity, going from a pillow companion who helps him sleep to his only favored noble consort kept deep in his heart. Accompanied through palace intrigue, war, and famine, raising military supplies and establishing women's schools, the two pledge their hearts to each other and bear a son. When the system's energy is exhausted, she is forced to "fake death" and leave. The tyrant cries his eyes red, searches everywhere for sorcerers in vain, and ultimately abdicates to his brother, crossing time and space with their son to reunite with her on a modern street.