Lin Wanxing, a top modern emergency medicine student, was electrocuted during an accident while rescuing a patient, accidentally traveling through to the Dajing Dynasty and becoming Prince Jing Xiao Jinyuan's ward-off-bad-luck princess. The original host was timid, cowardly, vulgar, and foolish, unfavored by the prince, and furthermore schemed against in every possible way by her childhood-sweetheart white-lotus concubine stepsister Lin Rou'er, ultimately being framed for illicit relations and dying a miserable death in the cold courtyard. With a single transit across time, the decisive and clear-headed modern Lin Wanxing takes over online. Right at the start, she faces the desperate situation of being cast aside and driven into the cold palace; she transforms the original host's humble and cowardly appearance, rebutting the green tea, breaking traps, and ingeniously saving herself, using modern medical knowledge to repeatedly resolve crises and amaze everyone.