A thousand years apart, 1,800 years apart, yet so familiar, as if I could see his daily life in the paintings and books. Looking for his traces in reality, he accidentally fell off a cliff... When he opened his eyes, he returned to a thousand years ago, which was his era. He is arrogant and unruly; she is unruly and unruly... Living in troubled times, her life is full of misfortunes. But being able to watch the bright moon and drink the same spring water with him, this kind of life is as enjoyable as ever...