A 100-Day Vow, A Lifetime of FateEpisode 4

Ancient princess Claire Morgan is betrayed and killed. Hit by divine thunder, she travels to modern Fenton. She saves the Carter family patriarch, her son with her late general husband. As the family’s great-grandmother, she is forced to date. She signs a 100-day flash marriage with rich heir Ethan Stone, to check if he is her husband’s reincarnation. Despite clashing personalities, she loves his humor and duty.