Zhou Yu is a female officer from the 22nd century who loves the history of the Three Kingdoms.
One night, while secretly using the laboratory's observation pod to investigate obscure history from the Three Kingdoms period, an explosion in the lab sends her into the body of Zhou Yu from that era.
When she wakes, the first thing she hears is, "The Commander has awakened." Zhou Yu is stunned. It turns out she looks exactly like the Zhou Yu of the Three Kingdoms.
The only difference is that she is a female version of Zhou Yu. She can't get back to her own time, and she can't escape, either. So she decides to play along. But Sun Ce arranges for her to marry Xiao Qiao.
Zhou Yu refuses the marriage again and again, but every attempt fails. The two end up married.
Later, by combining her knowledge with Xiao Qiao's help, Zhou Yu saves Sun Ce, steers Eastern Wu clear of the pitfalls it fell into in history, and changes Zhou Yu's fate of dying at thirty-four.
After accomplishing all this, Zhou Yu confesses the truth to Xiao Qiao. But Xiao Qiao throws herself into her arms and says, "Just because you're a girl now, does that mean you won't take care of me anymore?"
Theme: In troubled times, stand firm through wisdom and rewrite your fate.
Oh my god, we've found a treasure!