Jin Xia, a 27-year-old assistant to a wedding dress designer, buys an old seaside house, hoping for a happy life as a homeowner. However, she soon discovers the house has an unexpected resident—a mysterious young man who seems to be linked to her in strange ways. Unable to leave the house and with no memory of his past, their connection unfolds as they begin an unusual cohabitation.
Bai Jing resigns from her position as secretary to President Jin Shi’an due to dissatisfaction with her work arrangement, only to unexpectedly find herself trapped in a time loop. As she navigates the loop with their growing connection, they work together to resolve a company crisis.