Doomsday girl Jiang Xiyue time-travels to become the prime minister estate's third young miss, waking up inside a coffin. Accidentally learning that her dear older brother might have also time-traveled, Jiang Xiyue decides to find him. Her first task back at the prime minister estate is to teach her bullying scummy younger sister a lesson, then turn around and punish her vicious stepmother. Intent on finding her brother, she unexpectedly encounters Jin Prince Gu Yunci, who comes to pluck flowers in the middle of the night. Thinking it was just a chance meeting, she didn't expect Gu Yunci to quietly latch onto her.