The Shadow Agent Princess

Lan Shuifu is determined to become a hero. This time, she gets her wish and becomes a martyr! Her fragrant soul travels to a different time and space, an alternate history. To survive, she establishes an intelligence bureau, then gets manipulated into becoming a princess consort. Meanwhile, another Lan Shuifu isn't killed by her father, who covets the Nine Dragon Map, but chokes to death instead. It is the fifth day of the fifth lunar month, at noon, when yang energy is at its peak. The two unlucky women with the same name and surname swap places!