Luoxia Town, the place of exile for San Guan, was indeed Lin Fengzhi's battlefield.
As the second daughter of the Lin family, she is usually an idle shopkeeper who stays on the sidelines, but to the outside world she is a "wild" who scares the borders of many countries. Even the husband who brought a new wife hid a terrible secret.
A redemption, a repayment of kindness, so closely linked two very different people.
The originally ordinary life was disrupted by a shocking secret.
From scheming against each other to fighting side by side, their story started in the wind and sand of Luoxia Town and moved to a larger world.
(The question is from watching the show)