On the day when cultural relic restorer Chen Mu went bankrupt, he polished his ancestral vanity mirror from the Republic of China. The mirror surface was rippling like water. He stretched out his hand to touch it, and stepped into Shanghai in 1937.
He originally wanted to resell some "future information" in exchange for gold bars, but accidentally got involved in the mystery of protecting the national treasure "Gangling Tu". The mysterious antique dealer Lu Jiuye, the elegant and progressive female student Su Wanqing, the cunning Japanese special leader... Everyone wants to squeeze value from him, an "extraterrestrial visitor". Chen Mu relied on his "foreknowledge" of history and modern techniques to deal with it, but he was horrified to find that his every move in the Republic of China was quietly changing the details of the modern world - museum collections were disappearing, and the memories of acquaintances were being reorganized.
What made his hair stand on end was that the Su Wanqing who moved his heart actually looked exactly like Shen Qingci, the beautiful researcher who was tracking down the whereabouts of the "Jiangling Map" in real life! When the artillery fire in 1937 intertwined with the unsolved case in 2025, Chen Mu realized that this mirror was not a golden finger, but a huge time trap. He must find the only way to save his loved ones and protect the truth of history in the gap between two time and space...
